Buffer overflow in Mozilla products - CVE-2026-6785

 

Buffer overflow in Mozilla products - CVE-2026-6785

Published: April 21, 2026


Vulnerability identifier: #VU126661
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-6785
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox ESR
Firefox for Android

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to memory corruption in multiple components when rendering crafted web content. A remote attacker can cause the browser to process specially crafted content to execute arbitrary code.

The advisory states that some of the underlying bugs showed evidence of memory corruption.


How to mitigate CVE-2026-6785

Install security update from vendor's website.

Sources