CVE-2026-12297
Sandbox escape due to incorrect boundary conditions in the Networking component
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 16, 2026 |
| Last Updated | Jun 16, 2026 |
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Affected Versions
Mozilla / Firefox
All versions affected Mozilla / Thunderbird
All versions affected References
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2041610 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-57/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-58/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-59/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-60/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-61/
Credits
zx