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CVE-2022-3266
An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash. This vulnerability affects…
Medium5.5EPSS 0.30%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.30% · top 77% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
- Out of bounds read when decoding H264
- CWE-125 Out-of-bounds Read (opens in a new tab)All about CWE-125 and its CVEs
Affected products
- affected unspecified – < 102.3
- affected unspecified – < 102.3
- affected unspecified – < 105
References (4)
- https://www.mozilla.org/security/advisories/mfsa2022-40/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2022-41/ (opens in a new tab)x_transferred
- https://www.mozilla.org/security/advisories/mfsa2022-42/ (opens in a new tab)x_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1767360 (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
[](https://trackcve.app/cve/CVE-2022-3266)Record last updated .