점검 대응높음KEV 미등록
CVE-2026-50259
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 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.
- 대응 우선순위
- 점검
- CVSS
- 7.8
- EPSS
- 0.17% 백분위 6.11% · 2026.07.31 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.06.05