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Threatist priority CRITICAL 0 HIGH 0 MEDIUM 0 LOW 2

Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

Fix status Fixed 0 Partial 2 Will not fix 0 Deferred 0 No fix listed 0

Impact type Code execution 2 Privilege escalation 0 Security bypass 0 Information disclosure 0 Tampering 0 Denial of service 0 Spoofing 0 Cross-site scripting 0 SQL injection 0

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Requirements No authentication 0 No user interaction 2

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Weakness (CWE) CWE-122 Heap-based Buffer Overflow 2

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TI-2026-81998 CVE-2026-93519 · GHSA-qqmw-j3g8-423j

Heap buffer overflow in X.Org Server XFIXES pointer barriers

Priority LOW 35

A buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X ser…

CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00202 · Published 2026-10-28 · Partial fix · 21.1.25, 24.1.14 CWE-122

TI-2026-81987 CVE-2026-93517 · GHSA-fp5r-grwm-x622

Heap buffer overflow in X.Org Server GLX RenderLarge request

Priority LOW 38

A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause c…

CVSS 4.0HIGH 8.5· Local · Low privileges · No interaction · EPSS 0.00193 · Published 2026-10-28 · Partial fix · 21.1.25, 24.1.14 CWE-122

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