CVE-2022-46880
MEDIUMFirefox < 105.0 and Firefox ESR < 102.6 - Use-After-Free via Tex Unit Handling
Title source: llmDescription
A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.<br />*Note*: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.
References (6)
Core 6
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1749292
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-40/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-52/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-53/
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202305-06
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202305-13
Scores
CVSS v3
6.5
EPSS
0.0021
EPSS Percentile
43.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-416
Status
published
Products (3)
mozilla/firefox
< 105.0
mozilla/firefox_esr
< 102.6
mozilla/thunderbird
< 102.6
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026