🔐 CVE Alert

CVE-2026-100781

UNKNOWN 0.0

Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

Vendor mozilla
Product firefox
Ecosystems
Industries
Technology
Published Sep 29, 2026
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Affected Versions

Mozilla / Firefox
All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗
bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2068434 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-100/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-97/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-98/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-99/

Credits

Mozilla