CVE-2026-8952

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

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2021727	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-46/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-50/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:firefox:::::-:::*
	cpe:2.3:a:mozilla:thunderbird::::::::

History

14 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Escalada de privilegios en el componente de Actualización de Aplicaciones. Esta vulnerabilidad se corrigió en Firefox 151 y Thunderbird 151.

Information

Published : 2026-05-19 14:16

Updated : 2026-10-14 20:10

NVD link : CVE-2026-8952

Mitre link : CVE-2026-8952

CVE.ORG link : CVE-2026-8952

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-269

Improper Privilege Management

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