CVE-2026-8092
Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | May 7, 2026 |
| Last Updated | Jul 15, 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/buglist.cgi?bug_id=1806249%2C2021977%2C2022576%2C2022722%2C2024439%2C2027883%2C2029463%2C2030323%2C2032042%2C2032043%2C2033270%2C2033637%2C2034422%2C2034496%2C2035879%2C2036516 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-40/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-41/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-42/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-43/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-44/ access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-8092 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2467708 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8092.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24983 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24511 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:19160 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:20566 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24516 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:25015 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24755 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24509 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24510 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:24508 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:20574
Credits
Andrew McCreight, Christian Holler, Lee Salzman, Maurice Dauer, Tom Schuster, Wayne Mery and the Mozilla Fuzzing Team