What’s Vulnerable › Vulnerabilities

CVE-2022-45412

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% 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-59

Description

When resolving a symlink such as <code>file:///proc/self/fd/1</code>, an error message may be produced where the symlink was resolved to a string containing unitialized memory in the buffer. <br>*This bug only affects Thunderbird on Unix-based operated systems (Android, Linux, MacOS). Windows is unaffected.*. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Affected products

• Mozilla Firefox: before 107.0 — fixed in 107.0
• Mozilla Firefox ESR: before 102.5 — fixed in 102.5
• Mozilla Thunderbird: before 102.5 — fixed in 102.5

How to fix

Upgrade to a fixed version: Mozilla Firefox 107.0; Mozilla Firefox ESR 102.5; Mozilla Thunderbird 102.5. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1791029
• https://www.mozilla.org/security/advisories/mfsa2022-47/
• https://www.mozilla.org/security/advisories/mfsa2022-48/
• https://www.mozilla.org/security/advisories/mfsa2022-49/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1791029
• https://www.mozilla.org/security/advisories/mfsa2022-47/
• https://www.mozilla.org/security/advisories/mfsa2022-48/
• https://www.mozilla.org/security/advisories/mfsa2022-49/

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