xorg-x11-server (SUSE:Linux Enterprise Server 15 SP6-LTSS) — known CVEs & security advisories

Known CVE vulnerabilities and GitHub Security Advisories affecting the SUSE:Linux Enterprise Server 15 SP6-LTSS package xorg-x11-server, with affected version ranges, CVSS severity, EPSS exploit prediction, and CISA KEV status.

CVEs (5)

• CVE-2026-33999 — CVSS 7.8 (high): A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an…
• CVE-2026-34001 — CVSS 7.8 (high): A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within…
• CVE-2026-34003 — CVSS 7.8 (high): A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X…
• CVE-2026-34000 — CVSS 6.1 (medium): A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the…
• CVE-2026-34002 — CVSS 6.1 (medium): A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension) modifier map…