CVE-2025-11721

Oct. 14, 2025, 7:36 p.m.

None
No Score

Description

Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 144 and Thunderbird < 144.

Product(s) Impacted

Vendor Product Versions
Mozilla
  • Firefox
  • Thunderbird
  • <144
  • <144

Weaknesses

Common security weaknesses mapped to this vulnerability.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a mozilla firefox <144 / / / / / /
a mozilla thunderbird <144 / / / / / /

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1986816
https://www.mozilla.org/security/advisories/mfsa2025-81/
https://www.mozilla.org/security/advisories/mfsa2025-84/

Tags

security@mozilla.org
2025-10-14
CVE-2025-11721

Timeline

Published: Oct. 14, 2025, 1:15 p.m.
Last Modified: Oct. 14, 2025, 7:36 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@mozilla.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.