AZL-89546
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-89546.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-89546
- Upstream
- Published
- 2026-06-05T12:16:39Z
- Modified
- 2026-09-01T05:26:35Z
- Summary
- CVE-2026-50259 affecting package xorg-x11-server 1.20.10-6
- Details
-
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.
- References