CVE-2026-34352

HIGHNVD 8.58.5—

8.5

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 v3: 8.5
EG Score: 8.5(medium)
EPSS: 9.4%
KEV: Not listed

Published

March 26, 2026

Last Modified

April 2, 2026

References (4)

Vendor Advisories for CVE-2026-34352(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	tigervnc-0:1.15.0-7.el9_8.1	2026-05-19	redhat
redhat	tigervnc-0:1.15.0-9.el8_10	2026-05-04	redhat
redhat	tigervnc-0:1.15.0-6.el9_7.1	2026-04-27	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 20:07 UTCEG score recompute
2026-05-20 20:07 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-34352?

CVE-2026-34352 is a high vulnerability published on March 26, 2026. 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.

When was CVE-2026-34352 disclosed?

CVE-2026-34352 was first published in the National Vulnerability Database on March 26, 2026, with the most recent update on April 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-34352 actively exploited?

CVE-2026-34352 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

CVE-2026-34352 has a CVSS v3 base score of 8.5 (NVD).

How do I remediate CVE-2026-34352?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34352, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-34352

📅 Published

🔄 Last Modified

🔗 References (4)

📣 Vendor Advisories for CVE-2026-34352(3)

Patch Availability(3)

Data Freshness Timeline

❓ Frequently asked(5)