CVE-2022-49737 Race condition in X server
A race condition in the X.Org X server allows local attackers to cause a denial of service by triggering unsynchronized access to input data structures.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-49737?
CVE-2022-49737 is a high-severity vulnerability in X.org X server, published on 16 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.
Weakness: CWE-413
Which versions are affected by CVE-2022-49737?
Linux distribution packages (4)
xorg-x11-server SUSE:Linux Enterprise Module for Basesystem 15 SP6 | All versions | 21.1.11-150600.5.9.1 |
xorg-x11-server SUSE:Linux Enterprise Module for Development Tools 15 SP6 | All versions | 21.1.11-150600.5.9.1 |
xorg-x11-server openSUSE:Leap 15.6 | All versions | 21.1.11-150600.5.9.1 |
xorg-x11-server openSUSE:Tumbleweed | All versions | 21.1.15-3.1 |
How do I fix CVE-2022-49737?
Apply the vendor's patch.
Is CVE-2022-49737 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-49737 exists.
Sources
Also known as DEBIAN-CVE-2022-49737, GHSA-3f26-j6r7-9q8v, SUSE-SU-2025:0984-1, UBUNTU-CVE-2022-49737, openSUSE-SU-2025:14916-1.