CVE-2025-49178
A local attacker can exploit multiple vulnerabilities in X.Org X11 and Xwayland to cause a Denial-of-Service state and potentially execute code or achieve unspecified effects.
CSIRTS triage
- What
- A local attacker can exploit multiple vulnerabilities in X.Org X11 and Xwayland to cause a Denial-of-Service state and potentially execute code or achieve unspecified effects.
- Who is affected
- Local users of X.Org X11 and Xwayland.
- Urgency
- Remediation is important as it could lead to denial of service and potential code execution.
- Action
- Update to the latest version of X.Org X11 and Xwayland.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
Advisory coverage (1)
- medium[UPDATE] [medium] X.Org X11 and Xwayland: Multiple vulnerabilitiescert-bund · 2026-07-09
External references
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[](https://www.csirts.com/cve/CVE-2025-49178)