high8.1
CVE-2025-9185
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunder…
Impact
Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mozilla | Firefox | before 115.27.0 before 142.0 from 128.0 before 128.14.0 from 140.0 before 140.2.0 |
| Mozilla | Thunderbird | before 128.14.0 before 142.0 from 140.0 before 140.2.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166
- https://www.mozilla.org/security/advisories/mfsa2025-64/
- https://www.mozilla.org/security/advisories/mfsa2025-65/
- https://www.mozilla.org/security/advisories/mfsa2025-66/
- https://www.mozilla.org/security/advisories/mfsa2025-67/
- https://www.mozilla.org/security/advisories/mfsa2025-70/
- https://www.mozilla.org/security/advisories/mfsa2025-71/
- https://www.mozilla.org/security/advisories/mfsa2025-72/
- https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html