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Vulnerability Details :

CVE-2020-12390

Summary
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At-26 May, 2020 | 17:03
Updated At-04 Aug, 2024 | 11:56
Rejected At-
Credits

Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.

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)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:mozilla
Assigner Org ID:f16b083a-5664-49f3-a51e-8d479e5ed7fe
Published At:26 May, 2020 | 17:03
Updated At:04 Aug, 2024 | 11:56
Rejected At:
â–¼CVE Numbering Authority (CNA)

Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Affected
  • From unspecified before 76 (custom)
Problem Types
TypeCWE IDDescription
textN/AIncorrect serialization of nsIPrincipal.origin for IPv6 addresses
Type: text
CWE ID: N/A
Description: Incorrect serialization of nsIPrincipal.origin for IPv6 addresses
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.mozilla.org/security/advisories/mfsa2020-16/
x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1141959
x_refsource_MISC
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-16/
Resource:
x_refsource_MISC
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=1141959
Resource:
x_refsource_MISC
â–¼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.mozilla.org/security/advisories/mfsa2020-16/
x_refsource_MISC
x_transferred
https://bugzilla.mozilla.org/show_bug.cgi?id=1141959
x_refsource_MISC
x_transferred
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-16/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=1141959
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@mozilla.org
Published At:26 May, 2020 | 18:15
Updated At:29 May, 2020 | 16:12

Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.

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
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches

Mozilla Corporation
mozilla
>>firefox>>Versions before 76.0(exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-502Primarynvd@nist.gov
CWE ID: CWE-502
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://bugzilla.mozilla.org/show_bug.cgi?id=1141959security@mozilla.org
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2020-16/security@mozilla.org
Vendor Advisory
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=1141959
Source: security@mozilla.org
Resource:
Permissions Required
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2020-16/
Source: security@mozilla.org
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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EPSS-0.36% / 58.47%
||
7 Day CHG-0.02%
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Updated-15 Apr, 2025 | 15:16
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-8
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EPSS-0.42% / 62.01%
||
7 Day CHG~0.00%
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Updated-15 Apr, 2025 | 15:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefox_esrthunderbirdfirefoxThunderbirdFirefox ESRFirefox
CWE ID-CWE-416
Use After Free
CVE-2002-1198
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-7.5||HIGH
EPSS-0.50% / 66.27%
||
7 Day CHG~0.00%
Published-01 Sep, 2004 | 04:00
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.x before 2.16.1 does not properly filter apostrophes from an email address during account creation, which allows remote attackers to execute arbitrary SQL via a SQL injection attack.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-bugzillan/a
CVE-2002-1091
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-7.5||HIGH
EPSS-6.47% / 91.18%
||
7 Day CHG~0.00%
Published-01 Sep, 2004 | 04:00
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

Netscape 6.2.3 and earlier, and Mozilla 1.0.1, allow remote attackers to corrupt heap memory and execute arbitrary code via a GIF image with a zero width.

Action-Not Available
Vendor-n/aOperaNetscape (Yahoo Inc.)Mozilla Corporation
Product-opera_web_browsermozillanavigatorn/a
CVE-2020-6825
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.70% / 72.20%
||
7 Day CHG~0.00%
Published-24 Apr, 2020 | 15:50
Updated-04 Aug, 2024 | 09:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs present in Firefox 74 and Firefox ESR 68.6. 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 affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdfirefox_esrThunderbirdFirefox ESRFirefox
CWE ID-CWE-787
Out-of-bounds Write
CVE-2014-1514
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-4.17% / 88.80%
||
7 Day CHG~0.00%
Published-19 Mar, 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

vmtypedarrayobject.cpp in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 does not validate the length of the destination array before a copy operation, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write and application crash) by triggering incorrect use of the TypedArrayObject class.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/Linux
Product-thunderbirdsuse_linux_enterprise_software_development_kitdebian_linuxubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2014-1493
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.47% / 81.10%
||
7 Day CHG~0.00%
Published-19 Mar, 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

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/Linux
Product-thunderbirdsuse_linux_enterprise_software_development_kitdebian_linuxubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2014-1581
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-2.31% / 84.92%
||
7 Day CHG~0.00%
Published-15 Oct, 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

Use-after-free vulnerability in DirectionalityUtils.cpp in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to execute arbitrary code via text that is improperly handled during the interaction between directionality resolution and layout.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-thunderbirdfirefoxn/a
CVE-2014-1477
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.85% / 75.09%
||
7 Day CHG~0.00%
Published-06 Feb, 2014 | 02:00
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

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2.24 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/LinuxFedora Project
Product-thunderbirdsuse_linux_enterprise_software_development_kitdebian_linuxubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfedorafirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CVE-2014-1543
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-3.40% / 87.56%
||
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

Multiple heap-based buffer overflows in the navigator.getGamepads function in the Gamepad API in Mozilla Firefox before 30.0 allow remote attackers to execute arbitrary code by using non-contiguous axes with a (1) physical or (2) virtual Gamepad device.

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-2014-1575
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-1.99% / 83.81%
||
7 Day CHG~0.00%
Published-15 Oct, 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

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 33.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to improper interaction between threading and garbage collection in the GCRuntime::triggerGC function in js/src/jsgc.cpp, and unknown other vectors.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-firefoxn/a
CVE-2014-1569
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-3.64% / 87.96%
||
7 Day CHG~0.00%
Published-15 Dec, 2014 | 17:27
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

The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-network_security_servicesn/a
CVE-2014-1578
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-1.64% / 82.17%
||
7 Day CHG~0.00%
Published-15 Oct, 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

The get_tile function in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly execute arbitrary code via WebM frames with invalid tile sizes that are improperly handled in buffering operations during video playback.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-thunderbirdfirefoxn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2014-1576
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-4.67% / 89.44%
||
7 Day CHG~0.00%
Published-15 Oct, 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

Heap-based buffer overflow in the nsTransformedTextRun function in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to execute arbitrary code via Cascading Style Sheets (CSS) token sequences that trigger changes to capitalization style.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-thunderbirdfirefoxn/a
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2014-1510
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-71.09% / 98.73%
||
7 Day CHG~0.00%
Published-19 Mar, 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

The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allows remote attackers to execute arbitrary JavaScript code with chrome privileges by using an IDL fragment to trigger a window.open call.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/Linux
Product-thunderbirdsuse_linux_enterprise_software_development_kitdebian_linuxubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-269
Improper Privilege Management
CVE-2014-1485
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-0.96% / 76.73%
||
7 Day CHG~0.00%
Published-06 Feb, 2014 | 02:00
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

The Content Security Policy (CSP) implementation in Mozilla Firefox before 27.0 and SeaMonkey before 2.24 operates on XSLT stylesheets according to style-src directives instead of script-src directives, which might allow remote attackers to execute arbitrary XSLT code by leveraging insufficient style-src restrictions.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSEOracle CorporationSUSEMozilla Corporation
Product-firefoxubuntu_linuxseamonkeylinux_enterprise_desktopsolarislinux_enterprise_serverlinux_enterprise_software_development_kitopensusen/a
CVE-2014-1486
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-10.82% / 93.44%
||
7 Day CHG~0.00%
Published-06 Feb, 2014 | 02:00
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

Use-after-free vulnerability in the imgRequestProxy function in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, and SeaMonkey before 2.24 allows remote attackers to execute arbitrary code via vectors involving unspecified Content-Type values for image data.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/LinuxFedora Project
Product-thunderbirdsuse_linux_enterprise_software_development_kitdebian_linuxubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_ausfedorafirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-416
Use After Free
CVE-2014-1532
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-4.89% / 89.69%
||
7 Day CHG~0.00%
Published-30 Apr, 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

Use-after-free vulnerability in the nsHostResolver::ConditionallyRefreshRecord function in libxul.so in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before 2.26 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to host resolution.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/LinuxFedora Project
Product-thunderbirdenterprise_linux_eusfirefoxubuntu_linuxseamonkeydebian_linuxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfedoraopensusen/a
CWE ID-CWE-416
Use After Free
CVE-2014-1511
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-70.49% / 98.71%
||
7 Day CHG~0.00%
Published-19 Mar, 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

Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and SeaMonkey before 2.25 allow remote attackers to bypass the popup blocker via unspecified vectors.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/Linux
Product-thunderbirdsuse_linux_enterprise_software_development_kitdebian_linuxubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-269
Improper Privilege Management
CVE-2014-1574
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-1.64% / 82.17%
||
7 Day CHG~0.00%
Published-15 Oct, 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

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Action-Not Available
Vendor-n/aMozilla Corporation
Product-thunderbirdfirefoxn/a
CVE-2014-1524
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-6.41% / 91.14%
||
7 Day CHG~0.00%
Published-30 Apr, 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

The nsXBLProtoImpl::InstallImplementation function in Mozilla Firefox before 29.0, Firefox ESR 24.x before 24.5, Thunderbird before 24.5, and SeaMonkey before 2.26 does not properly check whether objects are XBL objects, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via crafted JavaScript code that accesses a non-XBL object as if it were an XBL object.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationDebian GNU/LinuxFedora Project
Product-thunderbirddebian_linuxfirefoxubuntu_linuxseamonkeyenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusfedoraenterprise_linux_server_ausenterprise_linux_eusopensusen/a
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CVE-2014-1568
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-7.5||HIGH
EPSS-33.60% / 96.99%
||
7 Day CHG+2.66%
Published-25 Sep, 2014 | 17:00
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

Mozilla Network Security Services (NSS) before 3.16.2.1, 3.16.x before 3.16.5, and 3.17.x before 3.17.1, as used in Mozilla Firefox before 32.0.3, Mozilla Firefox ESR 24.x before 24.8.1 and 31.x before 31.1.1, Mozilla Thunderbird before 24.8.1 and 31.x before 31.1.2, Mozilla SeaMonkey before 2.29.1, Google Chrome before 37.0.2062.124 on Windows and OS X, and Google Chrome OS before 37.0.2062.120, does not properly parse ASN.1 values in X.509 certificates, which makes it easier for remote attackers to spoof RSA signatures via a crafted certificate, aka a "signature malleability" issue.

Action-Not Available
Vendor-n/aApple Inc.Google LLCMozilla CorporationMicrosoft Corporation
Product-thunderbirdfirefoxfirefox_esrseamonkeymac_os_xchrome_oswindowschromenetwork_security_servicesn/a
CVE-2026-5731
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.07% / 21.63%
||
7 Day CHG+0.01%
Published-07 Apr, 2026 | 12:43
Updated-16 Apr, 2026 | 18:59
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 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxthunderbirdThunderbirdFirefox
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CVE-2013-6671
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-10.40% / 93.30%
||
7 Day CHG~0.00%
Published-11 Dec, 2013 | 15:00
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

The nsGfxScrollFrameInner::IsLTR function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code via crafted use of JavaScript code for ordered list elements.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationFedora Project
Product-thunderbirdsuse_linux_enterprise_software_development_kitubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfedorafirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CVE-2026-6771
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.06% / 19.28%
||
7 Day CHG~0.00%
Published-21 Apr, 2026 | 12:41
Updated-22 Apr, 2026 | 16:06
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Mitigation bypass in the DOM: Security component

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Action-Not Available
Vendor-Mozilla Corporation
Product-thunderbirdfirefoxFirefoxThunderbird
CWE ID-CWE-288
Authentication Bypass Using an Alternate Path or Channel
CVE-2013-5616
Matching Score-8
Assigner-Mozilla Corporation
ShareView Details
Matching Score-8
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.87% / 86.44%
||
7 Day CHG~0.00%
Published-11 Dec, 2013 | 15:00
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

Use-after-free vulnerability in the nsEventListenerManager::HandleEventSubType function in Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to mListeners event listeners.

Action-Not Available
Vendor-n/aCanonical Ltd.openSUSESUSERed Hat, Inc.Mozilla CorporationFedora Project
Product-thunderbirdsuse_linux_enterprise_software_development_kitubuntu_linuxseamonkeyenterprise_linux_server_tusenterprise_linux_desktopenterprise_linux_server_eusenterprise_linux_server_ausfedorafirefoxenterprise_linux_serverenterprise_linux_workstationsuse_linux_enterprise_serverenterprise_linux_eussuse_linux_enterprise_desktopopensusen/a
CWE ID-CWE-416
Use After Free
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