What’s Vulnerable › Vulnerabilities

CVE-2026-34352

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-732

Description

In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.

Affected products

• Kaspersky TigerVNC: before 1.16.2 — fixed in 1.16.2

How to fix

Upgrade to a fixed version: Kaspersky TigerVNC 1.16.2. Check the vendor advisory for mitigations.

References

• https://github.com/TigerVNC/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393
• https://github.com/TigerVNC/tigervnc/issues/2079
• https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLI
• https://sourceforge.net/projects/tigervnc/files/stable/1.16.2
• https://www.openwall.com/lists/oss-security/2026/03/26/7
• https://github.com/TigerVNC/tigervnc/issues/2079

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