Memory Safety Vulnerability in Firefox and Thunderbird Products by Mozilla
CVE-2025-0247

8.8HIGH

Key Information:

Vendor
Mozilla
Status
Firefox
Thunderbird
Vendor
CVE Published:
7 January 2025

Summary

A set of memory safety issues have been identified in Firefox and Thunderbird versions prior to 134. These issues enable the potential for memory corruption, which could be exploited maliciously to execute arbitrary code if sufficiently exploited. Mozilla has addressed these vulnerabilities in the updated releases, 134, for both products. Users are highly encouraged to update their software to the latest version to mitigate the risks associated with these memory safety bugs.

Affected Version(s)

Firefox < 134

Thunderbird < 134

References

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1835193%2...
https://www.mozilla.org/security/advisories/mfsa2025-01/
https://www.mozilla.org/security/advisories/mfsa2025-04/

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

Credit

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