A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption.…

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.

Scores

EPSS (exploitation in 30 days)

0.70% · top 46% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: poc · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

• Uninitialized variable leads to invalid memory read
• CWE-908 Use of Uninitialized Resource (opens in a new tab)All about CWE-908 and its CVEs

Affected products

• Mozilla · Thunderbird

  • affected unspecified – < 91.10

• Mozilla · Firefox

  • affected unspecified – < 101

• Mozilla · Firefox ESR

  • affected unspecified – < 91.10

References (4)

• https://www.mozilla.org/security/advisories/mfsa2022-20/ (opens in a new tab)x_transferred
• https://www.mozilla.org/security/advisories/mfsa2022-22/ (opens in a new tab)x_transferred
• https://www.mozilla.org/security/advisories/mfsa2022-21/ (opens in a new tab)x_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=1767590 (opens in a new tab)x_transferredexploit

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2022-31741](https://trackcve.app/badge/CVE-2022-31741.svg)](https://trackcve.app/cve/CVE-2022-31741)

Record last updated 15 Apr 2025, 18:59 UTC.