RCE in Mozilla Firefox
CVE-2022-46874
A file with a long filename could have had its filename truncated to remove the valid extension, leaving a malicious extension in its place. This could potentially led to user confusion and the execution of malicious code.<br/>*Note*: This issue was originally included in the advisories for Thunderbird 102.6, but a patch (specific to Thunderbird) was omitted, resulting in it actually being fixed in Thunderbird 102.6.1. This vulnerability affects Firefox < 108, Thunderbird < 102.6.1, Thunderbird < 102.6, and Firefox ESR < 102.6.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.001
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Firefox Esr
- Mozilla Thunderbird — versions unspecified
Weakness classification (CWE)
References
- www.mozilla.org/security/advisories/mfsa2022-52/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2022-53/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2022-51/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2022-54/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Permissions Required, Issue Tracking)
- security.gentoo.org/glsa/202305-06 (vendor-advisory)
- security.gentoo.org/glsa/202305-13 (vendor-advisory)
Frequently asked questions
- What is CVE-2022-46874?
- CVE-2022-46874 is a high-severity vulnerability in Mozilla Firefox, classified under Code Injection. CVSS score: 8.8/10. Published 2022-12-22.
- How severe is CVE-2022-46874?
- High severity. CVSS v3 base score is 8.8 out of 10.