CVE-2022-31741
A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.70% probability · 53th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1767590Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-20/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-21/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-22/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1767590Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-20/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-21/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2022-22/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1767590Issue Tracking, Permissions Required, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.