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CVE-2026-4962

UltraVNC Service version.dll uncontrolled search path

Published: Mar 27, 2026Updated: Apr 29, 2026 Sources: CVE List NVDCWE-426
7.0HIGH
NVD MITRE
EPSS Score
0.2%
Top 86.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

A security flaw has been discovered in UltraVNC up to 1.6.4.0. Affected by this issue is some unknown functionality in the library version.dll of the component Service. The manipulation results in uncontrolled search path. The attack needs to be approached locally. This attack is characterized by high complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-426CWE-427

Affected Products

uvnc
commercial
ultravncOn-prem
Consumer Software / file-utility
and 1 more affected products View all →

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Persistence
View detailed technique mapping

References

https://vuldb.com/?id.353839
vuldb.com
https://vuldb.com/?ctiid.353839
vuldb.com
https://vuldb.com/?submit.777619
vuldb.com
and 1 more references View all →
News mentions
Could not load news mentions.

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