CVE-2025-0247

Description

Memory safety bugs present in Firefox 133 and Thunderbird 133. 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 < 134 and Thunderbird < 134.

Reserved 2025-01-06 | Published 2025-01-07 | Updated 2025-01-09 | Assigner mozilla

Problem types

Memory safety bugs fixed in Firefox 134 and Thunderbird 134

Product status

Any version before 134
affected

Any version before 134
affected

Credits

Akmat Suleimanov, Jed Davis, André Bargull, and the Mozilla Fuzzing Team

References

bugzilla.mozilla.org/...919803%2C1931576%2C1931948%2C1932173 (Memory safety bugs fixed in Firefox 134 and Thunderbird 134)

www.mozilla.org/security/advisories/mfsa2025-01/

www.mozilla.org/security/advisories/mfsa2025-04/

cve.org (CVE-2025-0247)

nvd.nist.gov (CVE-2025-0247)

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