Zero-day vulnerability in Mozilla Firefox

Use-after-free
CVE-2022-26485

Vulnerability details

Advisory: SB2022030501 - Remote code execution in Mozilla Firefox

Vulnerable component: Mozilla Firefox

CVE-ID: CVE-2022-26485

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-416 - Use After Free

Description:

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing XSLT parameter. A remote attacker can trick the victim to open a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://www.mozilla.org/en-US/security/advisories/mfsa2022-09/