Description
Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
Affected products
mozilla: firefox
References10
- www.mozilla.org/security/advisories/mfsa2026-45/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=2036978 Permissions Required
- www.mozilla.org/security/advisories/mfsa2026-47/
- www.mozilla.org/security/advisories/mfsa2026-48/
- www.mozilla.org/security/advisories/mfsa2026-51/
- access.redhat.com/errata/RHSA-2026:21378
- access.redhat.com/errata/RHSA-2026:21380
- access.redhat.com/errata/RHSA-2026:21381
- access.redhat.com/errata/RHSA-2026:21382
- access.redhat.com/errata/RHSA-2026:22325
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 16 · as of 14 November 2026
- CWE
- CWE-119CWE-787
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