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CVE-2026-0539 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-0539

CVE-2026-0539

HIGH8.5

Local Privilege Escalation in pcvisit service client

Published Apr 22, 2026

Modified Yesterday

Details

Incorrect Default Permissions in pcvisit service binary on Windows allows a low-privileged local attacker to escalate their privileges by overwriting the service binary with arbitrary contents. This service binary is automatically launched with NT\SYSTEM privileges on boot. This issue affects all versions after 22.6.22.1329 and was fixed in 25.12.3.1745.

References

https://labs.infoguard.ch/advisories/cve-2026-0539_pcvisit_local-privilege-escalation/

https://www.cve.org/CVERecord?id=CVE-2026-0539

https://www.pcvisit.de/kundenbereich/release-notes

CVSS Analysis

CVSS v4.0

8.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

HighVC:H

Vuln. Integrity

HighVI:H

Vuln. Availability

HighVA:H

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

8.5/CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weakness Type (CWE)

Configuration

Incorrect Default Permissions

Ecosystems

Timeline

PublishedApr 22, 2026

ModifiedApr 22, 2026