CVE-2026-93517
A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org…
- Risk score
- 51/100
- CVSS
- 8.5 v4.0
- Published
- 28 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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.
- Affected
- See advisory
- Fix
- Upgrade the product to 21.1.25 or 24.1.14 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.5 high
References
Original description
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.
Last activity 28 Oct 2026. Patch Forecast updates every hour.