Vulnerability Monitor

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CVE-2025-1012

A race during concurrent delazification could have led to a use-after-free. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Published

2025-02-04T14:15:32.000

Last Modified

2025-02-06T19:33:46.407

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Primary
CWE-416
Type: Secondary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 115.20.0	Yes
Application	mozilla	firefox	< 135.0	Yes
Application	mozilla	firefox	< 128.7.0	Yes
Application	mozilla	thunderbird	< 135.0	Yes
Application	mozilla	thunderbird	< 128.7.0	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1939710 Permissions Required ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-07/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-08/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-09/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-10/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2025-11/ Vendor Advisory ([email protected])