VDB
GHSA-9wpv-xc33-5cm6
GHSA-9wpv-xc33-5cm6
PUBLISHED
CVSS 7.300000190734863 HIGH
Memory safety bugs present in Firefox ESR 140.10.0, Thunderbird ESR 140.10.0, Firefox 150.0.0 and Thunderbird 150.0.0. 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 150.0.1 and Firefox ESR 140.10.1.
Risk Scores
CVSS v3.1
7.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Exploit Intelligence
- mfsa2026-38.yml (github-poc)
- 2026.xml (github-poc)
Timeline
- Apr 28, 2026 CVE Published
- Apr 30, 2026 CVE Updated
- May 7, 2026 Security Advisory
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-7323 advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=2028537%2C2029911%2C2031121%2C2033602 url
- https://www.mozilla.org/security/advisories/mfsa2026-35 url
- https://www.mozilla.org/security/advisories/mfsa2026-36 url
- https://www.mozilla.org/security/advisories/mfsa2026-38 url
- https://www.mozilla.org/security/advisories/mfsa2026-39 url