CVE-2026-100762
9.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Summary
Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | 115.42 <= 115.* | unaffected |
| Mozilla | Firefox | 140.17 <= 140.* | unaffected |
| Mozilla | Firefox | 153.4 <= 153.* | unaffected |
| Mozilla | Firefox | 157 <= * | unaffected |
| Mozilla | Thunderbird | 140.17 <= 140.* | unaffected |
| Mozilla | Thunderbird | 153.4 <= 153.* | unaffected |
| Mozilla | Thunderbird | 157 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2059404
- https://www.mozilla.org/security/advisories/mfsa2026-100/
- https://www.mozilla.org/security/advisories/mfsa2026-101/
- https://www.mozilla.org/security/advisories/mfsa2026-102/
- https://www.mozilla.org/security/advisories/mfsa2026-103/
- https://www.mozilla.org/security/advisories/mfsa2026-97/
- https://www.mozilla.org/security/advisories/mfsa2026-98/
- https://www.mozilla.org/security/advisories/mfsa2026-99/
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