CVE-2025-49180 Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate and reflect (randr) extension
An integer overflow in the Xorg RandR extension allows attackers to cause denial of service or potentially execute code via malformed input.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-49180?
CVE-2025-49180 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 17 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to an integer overflow when computing the total size to allocate.
Weakness: CWE-190
Which versions are affected by CVE-2025-49180?
How do I fix CVE-2025-49180?
Apply the vendor's patch.
Is CVE-2025-49180 being exploited?
There is no known exploitation of CVE-2025-49180 in the wild and no public exploit code.
Sources
Also known as AZL-64199, AZL-64227, AZL-64262, BELL-CVE-2025-49180, CLSA-2025-1757499161, CLSA-2025-1757501564 and 3 more.