Description
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.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-12297 ↗
- bugzilla.mozilla.org/show_bug.cgi ↗
- www.mozilla.org/security/advisories/mfsa2026-57/ ↗
- www.mozilla.org/security/advisories/mfsa2026-58/ ↗
- www.mozilla.org/security/advisories/mfsa2026-59/ ↗
- www.mozilla.org/security/advisories/mfsa2026-60/ ↗
- www.mozilla.org/security/advisories/mfsa2026-61/ ↗
- access.redhat.com/errata/RHSA-2026:27717 ↗
- access.redhat.com/errata/RHSA-2026:27733 ↗
- access.redhat.com/errata/RHSA-2026:27734 ↗
- access.redhat.com/errata/RHSA-2026:29940 ↗
- access.redhat.com/errata/RHSA-2026:30846 ↗
- access.redhat.com/errata/RHSA-2026:33445 ↗
- access.redhat.com/errata/RHSA-2026:36100 ↗
- access.redhat.com/errata/RHSA-2026:36101 ↗
- access.redhat.com/errata/RHSA-2026:36102 ↗
- access.redhat.com/errata/RHSA-2026:36103 ↗
- access.redhat.com/errata/RHSA-2026:37210 ↗
- access.redhat.com/errata/RHSA-2026:37391 ↗
- access.redhat.com/errata/RHSA-2026:38506 ↗
- access.redhat.com/errata/RHSA-2026:38750 ↗
- access.redhat.com/errata/RHSA-2026:38751 ↗
- access.redhat.com/errata/RHSA-2026:38753 ↗
- access.redhat.com/errata/RHSA-2026:39011 ↗
- access.redhat.com/errata/RHSA-2026:39141 ↗
- access.redhat.com/errata/RHSA-2026:39142 ↗
- access.redhat.com/errata/RHSA-2026:39428 ↗
- access.redhat.com/errata/RHSA-2026:39706 ↗
- access.redhat.com/security/cve/CVE-2026-12297 ↗
- bugzilla.redhat.com/show_bug.cgi ↗
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12297.json ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.