CVE-2026-52722 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handling
A signed integer overflow in GStreamer's VMnc decoder allows remote attackers to cause crashes or disclose information via crafted media files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-52722?
CVE-2026-52722 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 15 Jun 2026. 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
A signed integer overflow vulnerability was found in GStreamer's VMnc decoder. A crafted VMnc stream with large cursor dimensions can overflow signed integer payload-size arithmetic, bypassing a length check and leading to out-of-bounds reads. A remote attacker could trick a user into opening a specially crafted VMnc file, potentially causing a crash or information disclosure.
Weakness: CWE-190
Which versions are affected by CVE-2026-52722?
How do I fix CVE-2026-52722?
Apply the vendor's patch.
Is CVE-2026-52722 being exploited?
There is no known exploitation of CVE-2026-52722 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-52722, ECHO-f543-391c-0d44, GHSA-cj3w-jxwm-h5h8, UBUNTU-CVE-2026-52722.