Is CVE-2026-34352 actively exploited?

CVE-2026-34352 has no public evidence of in-the-wild exploitation as of 2026-04-02.

What is the CVSS score for CVE-2026-34352?

CVE-2026-34352 has a CVSS score of 8.5 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L.

How do I patch CVE-2026-34352?

Patch guidance is available from tigervnc security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-34352.

Fix CVE-2026-34352 - HIGH tigervnc tigervnc

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
Attack Vector: local
Complexity: low
Privileges: none
User Action: none
Scope: changed
Confidentiality: high
Integrity: low
Availability: low
Weaknesses: CWE-732 · Incorrect Permission Assignment

Metadata

Primary Vendor: TIGERVNC
Published: 3/26/2026
Last Modified: 4/2/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-34352

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary