What’s Vulnerable › Vulnerabilities

CVE-2022-46880

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-22 · updated 2026-06-17
• Weakness: CWE-416

Description

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.

Affected products

• Mozilla Firefox: before 105.0 — fixed in 105.0
• Mozilla Firefox ESR: before 102.6 — fixed in 102.6
• Mozilla Thunderbird: before 102.6 — fixed in 102.6

How to fix

Upgrade to a fixed version: Mozilla Firefox 105.0; Mozilla Firefox ESR 102.6; Mozilla Thunderbird 102.6. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1749292
• https://security.gentoo.org/glsa/202305-06
• https://security.gentoo.org/glsa/202305-13
• https://www.mozilla.org/security/advisories/mfsa2022-40/
• https://www.mozilla.org/security/advisories/mfsa2022-52/
• https://www.mozilla.org/security/advisories/mfsa2022-53/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1749292
• https://security.gentoo.org/glsa/202305-06
• https://security.gentoo.org/glsa/202305-13
• https://www.mozilla.org/security/advisories/mfsa2022-40/
• https://www.mozilla.org/security/advisories/mfsa2022-52/
• https://www.mozilla.org/security/advisories/mfsa2022-53/

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