CVE-2026-93523

ADVISORY - nist

Summary

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.

EPSS Score⁠: 0.00202 (0.102)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-122⁠

Heap-based Buffer Overflow

ADVISORY - redhat

CWE-787⁠

Out-of-bounds Write

Impacted images

Advisories

NIST

CREATED

3 days ago

UPDATED

2 days ago

ADVISORY IDCVE-2026-93523⁠

EXPLOITABILITY SCORE

1.8

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-122⁠

CVSS SCORE

7.8high

Alpine

CREATED

24 days ago

UPDATED

23 days ago

ADVISORY IDCVE-2026-93523⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Debian

CREATED

24 days ago

UPDATED

2 days ago

ADVISORY IDCVE-2026-93523⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Alow

Ubuntu

CREATED

24 days ago

UPDATED

24 days ago

ADVISORY IDCVE-2026-93523⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Amedium

Alma

CREATED

18 days ago

UPDATED

17 days ago

ADVISORY IDALSA-2026:82015⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Alma

CREATED

12 days ago

UPDATED

11 days ago

ADVISORY IDALSA-2026:85193⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Alma

CREATED

10 days ago

UPDATED

10 days ago

ADVISORY IDALSA-2026:86907⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Alma

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDALSA-2026:89747⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Amazon

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDALAS2-2026-4013⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Amazon

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDALAS2-2026-4014⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Amazon

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDALAS2023-2026-3260⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Amazon

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDALAS2023-2026-3261⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Amazon

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDALAS2023-2026-3262⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Red Hat

CREATED

24 days ago

UPDATED

23 days ago

ADVISORY IDCVE-2026-93523⁠

EXPLOITABILITY SCORE

1.8

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-787⁠

CVSS SCORE

7.8high

Rocky

CREATED

17 days ago

UPDATED

17 days ago

ADVISORY IDRLSA-2026:82015⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Rocky

CREATED

11 days ago

UPDATED

11 days ago

ADVISORY IDRLSA-2026:85191⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Rocky

CREATED

11 days ago

UPDATED

11 days ago

ADVISORY IDRLSA-2026:85193⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Rocky

CREATED

9 days ago

UPDATED

9 days ago

ADVISORY IDRLSA-2026:86907⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Rocky

CREATED

4 days ago

UPDATED

3 days ago

ADVISORY IDRLSA-2026:89747⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

18 days ago

UPDATED

18 days ago

ADVISORY IDELSA-2026-82015⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

12 days ago

UPDATED

12 days ago

ADVISORY IDELSA-2026-85191⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

12 days ago

UPDATED

12 days ago

ADVISORY IDELSA-2026-85193⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

10 days ago

UPDATED

10 days ago

ADVISORY IDELSA-2026-86907⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh

Oracle

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY IDELSA-2026-89747⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

CVSS SCORE

N/Ahigh