Out-of-bounds Write Affecting tigervnc-server-applet package, versions <0:1.8.0-24.amzn2.0.11


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

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  • Snyk IDSNYK-AMZN2-TIGERVNCSERVERAPPLET-21696317
  • published25 Oct 2026
  • disclosed28 Oct 2026

Introduced: 25 Oct 2026

NewCVE-2026-93521  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 tigervnc-server-applet to version 0:1.8.0-24.amzn2.0.11 or higher.
This issue was patched in ALAS2-2026-4013.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-server-applet package and not the tigervnc-server-applet package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A buffer overflow in RandR ChangeProviderProperty requests in X.Org X Server before 2.1.25 and XWayland before 24.4.14 could be used by authenticated X clients to crash or execute code within the X server context.

CVSS Base Scores

version 3.1