HIGHCVSS v4 8.5Vulnerability
CVE-2026-93517
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 crashes or code execution in X server context.
Properties
- Severity
- HIGH
- Nvd fetched at
- 2026-10-28T15:40:15.054286+00:00
- Cvss severity
- HIGH
- Cvss score
- 8.5
- Retrieved at
- 2026-10-28T15:41:17+00:00
- Score
- 8.5
- Cvss version
- 4.0
- Last source
- NVD
- Cve id
- CVE-2026-93517
- Cvss vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- First seen by Signal
- 2026-10-28T15:41:17+00:00
- Vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Published at
- 2026-10-28T14:17:08.843
- Last modified
- 2026-10-28T15:21:31.673
Related Entities (1)
HAS_WEAKNESS (1)
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