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Vulnerability Details :

CVE-2026-8391

Summary
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At-12 May, 2026 | 12:36
Updated At-19 May, 2026 | 17:10
Rejected At-
Credits

Other issue in the JavaScript Engine component

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mozilla
Assigner Org ID:f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At:12 May, 2026 | 12:36
Updated At:19 May, 2026 | 17:10
Rejected At:
▼CVE Numbering Authority (CNA)
Other issue in the JavaScript Engine component

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Unaffected
  • From 115.36 through 115.* (rpm)
  • From 140.11 through 140.* (rpm)
  • From 150.0.3 through * (rpm)
Vendor
Mozilla CorporationMozilla
Product
Thunderbird
Versions
Unaffected
  • From 140.11 through * (rpm)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

ggwhyp
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2038575
N/A
https://www.mozilla.org/security/advisories/mfsa2026-45/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-47/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-48/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-51/
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2038575
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-45/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-47/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-48/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-51/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-20CWE-20 Improper Input Validation
CWECWE-79CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWECWE-119CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Type: CWE
CWE ID: CWE-20
Description: CWE-20 Improper Input Validation
Type: CWE
CWE ID: CWE-79
Description: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Type: CWE
CWE ID: CWE-119
Description: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@mozilla.org
Published At:12 May, 2026 | 14:17
Updated At:19 May, 2026 | 18:16

Other issue in the JavaScript Engine component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CPE Matches

Mozilla Corporation
mozilla
>>firefox>>Versions before 150.0.3(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
Weaknesses
CWE IDTypeSource
CWE-20Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-79Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-119Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-20
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-79
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-119
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2038575security@mozilla.org
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-45/security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-47/security@mozilla.org
N/A
https://www.mozilla.org/security/advisories/mfsa2026-48/security@mozilla.org
N/A
https://www.mozilla.org/security/advisories/mfsa2026-51/security@mozilla.org
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2038575
Source: security@mozilla.org
Resource:
Permissions Required
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-45/
Source: security@mozilla.org
Resource:
Vendor Advisory
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-47/
Source: security@mozilla.org
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-48/
Source: security@mozilla.org
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-51/
Source: security@mozilla.org
Resource: N/A

Change History

0
Information is not available yet

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Known To Be Used In Ransomware Campaigns?-Not Available
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Matching Score-6
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Matching Score-6
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||
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Updated-23 Apr, 2026 | 00:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-5.3||MEDIUM
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||
7 Day CHG~0.00%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
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CWE ID-CWE-20
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CVE-2010-2763
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.3||MEDIUM
EPSS-0.53% / 67.36%
||
7 Day CHG~0.00%
Published-09 Sep, 2010 | 18:00
Updated-29 Apr, 2026 | 01:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
Vendor-n/aMozilla Corporation
Product-thunderbirdfirefoxseamonkeyn/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2006-6500
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-6.8||MEDIUM
EPSS-37.53% / 97.24%
||
7 Day CHG~0.00%
Published-20 Dec, 2006 | 01:00
Updated-23 Apr, 2026 | 00:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
Vendor-n/aCanonical Ltd.Mozilla CorporationDebian GNU/Linux
Product-thunderbirddebian_linuxubuntu_linuxseamonkeyfirefoxn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2020-1933
Matching Score-6
Assigner-Apache Software Foundation
ShareView Details
Matching Score-6
Assigner-Apache Software Foundation
CVSS Score-6.1||MEDIUM
EPSS-0.48% / 65.53%
||
7 Day CHG~0.00%
Published-28 Jan, 2020 | 00:33
Updated-04 Aug, 2024 | 06:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A XSS vulnerability was found in Apache NiFi 1.0.0 to 1.10.0. Malicious scripts could be injected to the UI through action by an unaware authenticated user in Firefox. Did not appear to occur in other browsers.

Action-Not Available
Vendor-The Apache Software FoundationMozilla Corporation
Product-firefoxnifiApache NiFi
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2010-0165
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-9.3||HIGH
EPSS-3.50% / 87.74%
||
7 Day CHG~0.00%
Published-25 Mar, 2010 | 20:31
Updated-29 Apr, 2026 | 01:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The TraceRecorder::traverseScopeChain function in js/src/jstracer.cpp in the browser engine in Mozilla Firefox 3.6 before 3.6.2 allows remote attackers to cause a denial of service (memory corruption and application crash) and possibly execute arbitrary code via vectors involving certain indirect calls to the JavaScript eval function.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2006-4565
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-9.3||HIGH
EPSS-10.37% / 93.28%
||
7 Day CHG~0.00%
Published-15 Sep, 2006 | 18:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Heap-based buffer overflow in Mozilla Firefox before 1.5.0.7, Thunderbird before 1.5.0.7, and SeaMonkey before 1.0.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a JavaScript regular expression with a "minimal quantifier."

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxthunderbirdseamonkeyn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-2776
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-10||CRITICAL
EPSS-0.03% / 8.30%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-16 Apr, 2026 | 14:31
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software

Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2010-0171
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.3||MEDIUM
EPSS-0.52% / 67.04%
||
7 Day CHG~0.00%
Published-25 Mar, 2010 | 20:31
Updated-29 Apr, 2026 | 01:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox 3.0.x before 3.0.18, 3.5.x before 3.5.8, and 3.6.x before 3.6.2; Thunderbird before 3.0.2; and SeaMonkey before 2.0.3 allow remote attackers to perform cross-origin keystroke capture, and possibly conduct cross-site scripting (XSS) attacks, by using the addEventListener and setTimeout functions in conjunction with a wrapped object. NOTE: this vulnerability exists because of an incomplete fix for CVE-2007-3736.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-thunderbirdfirefoxseamonkeyn/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2017-5400
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.02% / 77.48%
||
7 Day CHG+0.02%
Published-11 Jun, 2018 | 21:00
Updated-25 Nov, 2025 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

Action-Not Available
Vendor-Mozilla CorporationDebian GNU/LinuxRed Hat, Inc.
Product-thunderbirdfirefoxenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_serverdebian_linuxenterprise_linux_workstationenterprise_linux_server_ausFirefoxFirefox ESRThunderbird
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2011-2379
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.3||MEDIUM
EPSS-0.44% / 63.44%
||
7 Day CHG~0.00%
Published-09 Aug, 2011 | 19:00
Updated-29 Apr, 2026 | 01:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Cross-site scripting (XSS) vulnerability in Bugzilla 2.4 through 2.22.7, 3.0.x through 3.3.x, 3.4.x before 3.4.12, 3.5.x, 3.6.x before 3.6.6, 3.7.x, 4.0.x before 4.0.2, and 4.1.x before 4.1.3, when Internet Explorer before 9 or Safari before 5.0.6 is used for Raw Unified mode, allows remote attackers to inject arbitrary web script or HTML via a crafted patch, related to content sniffing.

Action-Not Available
Vendor-n/aApple Inc.Mozilla CorporationMicrosoft Corporation
Product-internet_explorersafaribugzillan/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2017-5399
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.02% / 77.46%
||
7 Day CHG+0.29%
Published-11 Jun, 2018 | 21:00
Updated-05 Aug, 2024 | 14:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Memory safety bugs were reported in Firefox 51. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdFirefoxThunderbird
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2006-4568
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.3||MEDIUM
EPSS-1.36% / 80.35%
||
7 Day CHG~0.00%
Published-15 Sep, 2006 | 19:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox before 1.5.0.7 and SeaMonkey before 1.0.5 allows remote attackers to bypass the security model and inject content into the sub-frame of another site via targetWindow.frames[n].document.open(), which facilitates spoofing and other attacks.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxseamonkeyn/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2026-2773
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.03% / 8.48%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-16 Apr, 2026 | 14:31
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Incorrect boundary conditions in the Web Audio component

Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-2778
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-10||CRITICAL
EPSS-0.03% / 8.30%
||
7 Day CHG~0.00%
Published-24 Feb, 2026 | 13:33
Updated-16 Apr, 2026 | 14:32
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component

Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2015-0829
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-6.8||MEDIUM
EPSS-2.65% / 85.91%
||
7 Day CHG+0.47%
Published-25 Feb, 2015 | 11:00
Updated-06 May, 2026 | 22:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Buffer overflow in libstagefright in Mozilla Firefox before 36.0 allows remote attackers to execute arbitrary code via a crafted MP4 video that is improperly handled during playback.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSEOracle CorporationMozilla Corporation
Product-solarisfirefoxubuntu_linuxopensusen/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2006-4310
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.3||MEDIUM
EPSS-15.77% / 94.81%
||
7 Day CHG~0.00%
Published-23 Aug, 2006 | 19:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox 1.5.0.6 allows remote attackers to cause a denial of service (crash) via a crafted FTP response, when attempting to connect with a username and password via the FTP URI.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2020-12388
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-10||CRITICAL
EPSS-0.71% / 72.43%
||
7 Day CHG~0.00%
Published-26 May, 2020 | 17:04
Updated-04 Aug, 2024 | 11:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape. *Note: this issue only affects Firefox on Windows operating systems.*. This vulnerability affects Firefox ESR < 68.8 and Firefox < 76.

Action-Not Available
Vendor-Mozilla CorporationMicrosoft Corporation
Product-firefoxwindowsfirefox_esrFirefoxFirefox ESR
CWE ID-CWE-20
Improper Input Validation
CVE-2006-2788
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-7.5||HIGH
EPSS-8.29% / 92.32%
||
7 Day CHG~0.00%
Published-02 Jun, 2006 | 21:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Double free vulnerability in the getRawDER function for nsIX509Cert in Firefox allows remote attackers to cause a denial of service (hang) and possibly execute arbitrary code via certain Javascript code.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2006-2894
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4||MEDIUM
EPSS-6.91% / 91.48%
||
7 Day CHG~0.00%
Published-07 Jun, 2006 | 10:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox 1.5.0.4, 2.0.x before 2.0.0.8, Mozilla Suite 1.7.13, Mozilla SeaMonkey 1.0.2 and other versions before 1.1.5, and Netscape 8.1 and earlier allow user-assisted remote attackers to read arbitrary files by tricking a user into typing the characters of the target filename in a text box and using the OnKeyDown, OnKeyPress, and OnKeyUp Javascript keystroke events to change the focus and cause those characters to be inserted into a file upload input control, which can then upload the file when the user submits the form.

Action-Not Available
Vendor-n/aMozilla CorporationNetscape (Yahoo Inc.)
Product-firefoxmozilla_suiteseamonkeynavigatorn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2006-2783
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.3||MEDIUM
EPSS-4.98% / 89.78%
||
7 Day CHG~0.00%
Published-02 Jun, 2006 | 19:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox and Thunderbird before 1.5.0.4 strip the Unicode Byte-order-Mark (BOM) from a UTF-8 page before the page is passed to the parser, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a BOM sequence in the middle of a dangerous tag such as SCRIPT.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxthunderbirdn/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2006-2782
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-4.3||MEDIUM
EPSS-1.44% / 80.89%
||
7 Day CHG~0.00%
Published-02 Jun, 2006 | 19:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Firefox 1.5.0.2 does not fix all test cases associated with CVE-2006-1729, which allows remote attackers to read arbitrary files by inserting the target filename into a text box, then turning that box into a file upload control.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxseamonkeyn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2006-1731
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.3||MEDIUM
EPSS-2.82% / 86.30%
||
7 Day CHG~0.00%
Published-14 Apr, 2006 | 10:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 returns the Object class prototype instead of the global window object when (1) .valueOf.call or (2) .valueOf.apply are called without any arguments, which allows remote attackers to conduct cross-site scripting (XSS) attacks.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxmozilla_suitethunderbirdseamonkeyn/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2006-1739
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-9.3||HIGH
EPSS-33.12% / 96.96%
||
7 Day CHG~0.00%
Published-14 Apr, 2006 | 10:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The CSS border-rendering code in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via certain Cascading Style Sheets (CSS) that causes an out-of-bounds array write and buffer overflow.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxmozilla_suitethunderbirdseamonkeyn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2006-1741
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.3||MEDIUM
EPSS-1.95% / 83.65%
||
7 Day CHG~0.00%
Published-14 Apr, 2006 | 10:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to inject arbitrary Javascript into other sites by (1) "using a modal alert to suspend an event handler while a new page is being loaded", (2) using eval(), and using certain variants involving (3) "new Script;" and (4) using window.__proto__ to extend eval, aka "cross-site JavaScript injection".

Action-Not Available
Vendor-n/aCanonical Ltd.Mozilla Corporation
Product-firefoxmozilla_suiteubuntu_linuxseamonkeyn/a
CWE ID-CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE-2006-0914
Matching Score-6
Assigner-MITRE Corporation
ShareView Details
Matching Score-6
Assigner-MITRE Corporation
CVSS Score-5.5||MEDIUM
EPSS-0.76% / 73.47%
||
7 Day CHG~0.00%
Published-28 Feb, 2006 | 11:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Bugzilla 2.16.10, 2.17 through 2.18.4, and 2.20 does not properly handle certain characters in the mostfreqthreshold parameter in duplicates.cgi, which allows remote attackers to trigger a SQL error.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-bugzillan/a
CWE ID-CWE-20
Improper Input Validation
CVE-2006-1729
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-4.3||MEDIUM
EPSS-1.82% / 83.06%
||
7 Day CHG~0.00%
Published-14 Apr, 2006 | 10:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla Firefox 1.x before 1.5.0.2 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0.1 allows remote attackers to read arbitrary files by (1) inserting the target filename into a text box, then turning that box into a file upload control, or (2) changing the type of the input control that is associated with an event handler.

Action-Not Available
Vendor-n/aCanonical Ltd.Mozilla Corporation
Product-firefoxmozilla_suiteubuntu_linuxseamonkeyn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2006-0298
Matching Score-6
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-6
Assigner-Red Hat, Inc.
CVSS Score-5.8||MEDIUM
EPSS-4.35% / 89.04%
||
7 Day CHG~0.00%
Published-02 Feb, 2006 | 22:00
Updated-16 Apr, 2026 | 00:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The XML parser in Mozilla Firefox before 1.5.0.1 and SeaMonkey before 1.0 allows remote attackers to cause a denial of service (crash) and possibly read sensitive data via unknown attack vectors that trigger an out-of-bounds read.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxseamonkeyn/a
CWE ID-CWE-20
Improper Input Validation
CVE-2014-1542
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-6.8||MEDIUM
EPSS-4.72% / 89.50%
||
7 Day CHG~0.00%
Published-11 Jun, 2014 | 10:00
Updated-06 May, 2026 | 22:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Buffer overflow in the Speex resampler in the Web Audio subsystem in Mozilla Firefox before 30.0 allows remote attackers to execute arbitrary code via vectors related to a crafted AudioBuffer channel count and sample rate.

Action-Not Available
Vendor-n/aopenSUSEMozilla CorporationOracle Corporation
Product-solarisfirefoxopensusen/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-0892
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.03% / 7.62%
||
7 Day CHG~0.00%
Published-13 Jan, 2026 | 13:30
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox 147 and Thunderbird 147

Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 147 and Thunderbird 147.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-0891
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.1||HIGH
EPSS-0.03% / 8.32%
||
7 Day CHG~0.00%
Published-13 Jan, 2026 | 13:30
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147

Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-0879
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.03% / 8.93%
||
7 Day CHG+0.01%
Published-13 Jan, 2026 | 13:30
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions in the Graphics component

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2026-0878
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8||HIGH
EPSS-0.03% / 9.91%
||
7 Day CHG+0.01%
Published-13 Jan, 2026 | 13:30
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-20
Improper Input Validation
CVE-2025-9184
Matching Score-6
Assigner-Mozilla Corporation
ShareView Details
Matching Score-6
Assigner-Mozilla Corporation
CVSS Score-8.1||HIGH
EPSS-0.11% / 29.33%
||
7 Day CHG+0.01%
Published-19 Aug, 2025 | 20:33
Updated-13 Apr, 2026 | 15:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Memory safety bugs fixed in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142

Memory safety bugs present in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
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