CVEvulnerability

CVE-2026-0892

9.8 CRITICAL Published 2026-01-13 Modified 2026-06-17 Official page ↗

Status: Modified
Published: 2026-01-13
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-119

Description

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.

Affected configurations

• mozilla firefox (< 147.0) • mozilla thunderbird (< 147.0)

Weakness · CWE (1)

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1986912%2C1996718%2C1999633%2C2001081%2C2004443 Broken Link
https://www.mozilla.org/security/advisories/mfsa2026-01/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-04/ Vendor Advisory

CVE-2026-0892

Description

Affected configurations

Related

Weakness · CWE (1)

References