SUSE-SU-2026:2225-1 Security update for xorg-x11-server

Not scored Published

Multiple memory corruption flaws in the X11 server allow local attackers to execute arbitrary code or escalate privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is SUSE-SU-2026:2225-1?

SUSE-SU-2026:2225-1 is a memory corruption vulnerability, published on 2 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This update for xorg-x11-server fixes the following issues

  • CreateSaverWindow Use-After-Free Information Disclosure. (bsc#1266301)
  • DRI2 DRIGetBuffers/DRIGetBuffersWithFormat Out-Of-Bounds Write. (bsc#1266302)
  • Font Alias Stack-based Buffer Overflow. (bsc#1266294)
  • GLX ChangeDrawableAttributes Out-Of-Bounds Read/Write. (bsc#1266300)
  • XKB Key Types Stack-based Buffer Overflow. (bsc#1266296)
  • XKB SetMap Request Stack-based Buffer Overflow. (bsc#1266297)
  • XSYNC Use-After-Free in FreeCounter(). (bsc#1266298)
  • XSYNC Use-After-Free in miSyncDestroyFence(). (bsc#1266295)
  • XSYNC Use-After-Free in SyncChangeCounter(). (bsc#1266299)

Which versions are affected by SUSE-SU-2026:2225-1?

How do I fix SUSE-SU-2026:2225-1?

No fix has been published for SUSE-SU-2026:2225-1 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is SUSE-SU-2026:2225-1 being exploited?

There is no known exploitation of SUSE-SU-2026:2225-1 in the wild and no public exploit code.

Sources

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