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CVE Vulnerability Details :
CVE-2026-8952
PUBLISHED
More InfoOfficial Page
Assigner-mozilla
Assigner Org ID-f16b083a-5664-49f3-a51e-8d479e5ed7fe
View Known Exploited Vulnerability (KEV) details
Published At-19 May, 2026 | 12:29
Updated At-19 May, 2026 | 17:10
Rejected At-
▼CVE Numbering Authority (CNA)
Privilege escalation in the Application Update component

Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

Affected Products
Vendor
Mozilla CorporationMozilla
Product
Firefox
Versions
Unaffected
  • From 151 through * (rpm)
Vendor
Mozilla CorporationMozilla
Product
Thunderbird
Versions
Unaffected
  • From 151 through * (rpm)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Tomoya Nakanishi
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://bugzilla.mozilla.org/show_bug.cgi?id=2021727
N/A
https://www.mozilla.org/security/advisories/mfsa2026-46/
N/A
https://www.mozilla.org/security/advisories/mfsa2026-50/
N/A
Hyperlink: https://bugzilla.mozilla.org/show_bug.cgi?id=2021727
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-46/
Resource: N/A
Hyperlink: https://www.mozilla.org/security/advisories/mfsa2026-50/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-269CWE-269 Improper Privilege Management
Type: CWE
CWE ID: CWE-269
Description: CWE-269 Improper Privilege Management
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found