CVE-2022-26486 Mozilla Firefox Use-After-Free
Attackers can exploit a use-after-free in the WebGPU IPC framework to escape the sandbox and execute arbitrary code, requiring users to upgrade their browsers.
- Exploited in the wild
- Since 7 Mar 2022
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2022-26486?
CVE-2022-26486 is a critical use after free vulnerability in Mozilla Firefox, published on 22 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.
Weakness: CWE-416
Which versions are affected by CVE-2022-26486?
It affects 4 products.
Products include Mozilla Firefox, Mozilla Firefox Focus, Mozilla Firefox Mobile, Mozilla Thunderbird.
How do I fix CVE-2022-26486?
Upgrade to a fixed version. US federal agencies must fix it by 21 Mar 2022.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-26486 being exploited?
Yes. Attackers have exploited CVE-2022-26486 in the wild since at least 7 Mar 2022.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2022-26486, GHSA-h9vh-vxg7-xmhh, UBUNTU-CVE-2022-26486.