CVE-2026-50260
Red Hat Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support 취약점
A use-after-free flaw was found in the X.Org X server and Xwayland in FreeCounter(). A client that sets up multiple SyncCounters and awaits on those triggers can trigger a use-after-free when destroying those counters via a second client connection. This may be used to crash the server, or for privilege escalation if the X server runs as root.
- 대응 우선순위
- 점검
- CVSS
- 7.8
- EPSS
- 0.15% 백분위 5.08% · 2026.07.31 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.06.05