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CVE-2026-34352 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:8.5 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/TigerVNC/tigervnc/issues/2079	CISA-ADP
https://github.com/TigerVNC/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393	[email protected]	Patch
https://github.com/TigerVNC/tigervnc/issues/2079	[email protected]
https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLI	[email protected]	Mailing ListPatch
https://sourceforge.net/projects/tigervnc/files/stable/1.16.2	[email protected]	Release Notes
https://www.openwall.com/lists/oss-security/2026/03/26/7	[email protected]	Mailing ListThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-732	Incorrect Permission Assignment for Critical Resource	[email protected]

Affected Products

Product	Versions
tigervnc tigervnc	< 1.16.2
CPE cpe:2.3:a:tigervnc:tigervnc:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 4, 2026	CVE Modified	CISA-ADP
Jun 3, 2026	CVE Modified	[email protected]
Apr 2, 2026	Initial Analysis	[email protected]
Mar 26, 2026	New CVE Received	[email protected]