Memory Corruption Issue in Firefox by Mozilla
CVE-2025-10530

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox; Thunderbird
Vendor: CVE Published:; 16 September 2025

What is CVE-2025-10530?

A memory corruption vulnerability in Mozilla Firefox can allow an attacker to exploit affected versions, leading to potential execution of arbitrary code. Users are advised to upgrade to the latest version to mitigate risks. Further information can be found in Mozilla’s security advisories.

Affected Version(s)

Firefox < 143

Thunderbird < 143

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1974025

https://www.mozilla.org/security/advisories/mfsa2025-73/

https://www.mozilla.org/security/advisories/mfsa2025-77/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Sep 16, 2025
Vulnerability Reserved
Sep 16, 2025

Credit

Hafiizh & Kang Ali