CVEvulnerability
CVE-2022-26387
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-12-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-367
Description
When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.
Affected configurations
• mozilla firefox (< 98.0)
• mozilla firefox esr (< 91.7)
• mozilla thunderbird (< 91.7)
Related
Weakness · CWE (1)
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1752979 Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-11/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-12/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1752979 Exploit, Issue Tracking, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-10/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-11/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-12/ Vendor Advisory