Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. 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 affects Firefox < 139, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
| Link | Tags |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1950136%2C1958121%2C1960499%2C1962634 | broken link |
| https://www.mozilla.org/security/advisories/mfsa2025-42/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-44/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-45/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2025-46/ | vendor advisory |