CVE-2026-74967
5.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Summary
Same-origin policy bypass in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | 140.14 <= 140.* | unaffected |
| Mozilla | Firefox | 153.1 <= 153.* | unaffected |
| Mozilla | Firefox | 154 <= * | unaffected |
| Mozilla | Thunderbird | 140.14 <= 140.* | unaffected |
| Mozilla | Thunderbird | 153.1 <= 153.* | unaffected |
| Mozilla | Thunderbird | 154 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2055697
- https://www.mozilla.org/security/advisories/mfsa2026-74/
- https://www.mozilla.org/security/advisories/mfsa2026-76/
- https://www.mozilla.org/security/advisories/mfsa2026-77/
- https://www.mozilla.org/security/advisories/mfsa2026-78/
- https://www.mozilla.org/security/advisories/mfsa2026-79/
- https://www.mozilla.org/security/advisories/mfsa2026-80/
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