A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of service (DoS) or other severe impacts.
References
Configurations
No configuration.
History
No history.
Information
Published : 2026-04-23 16:16
Updated : 2026-07-15 02:20
NVD link : CVE-2026-33999
Mitre link : CVE-2026-33999
CVE.ORG link : CVE-2026-33999
JSON object : View
Products Affected
No product.
CWE
CWE-191
Integer Underflow (Wrap or Wraparound)
