Local Privilege Escalation in pcvisit service client

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-0539
StatePUBLISHED
AssignerNCSC.ch
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 14:16:30 UTC
Updated2026-05-19 15:44:56 UTC
DescriptionIncorrect 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.

Risk And Classification

Primary CVSS: v4.0 8.5 HIGH from [email protected]

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000140000 probability, percentile 0.026840000 (date 2026-05-26)

Problem Types: CWE-276 | CWE-276 CWE-276 Incorrect Default Permissions

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.5HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS8.5HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pcvisit Pcvisit Remote Host Modul affected 22.6.22.1329 25.12.3.1745 custom Windows
CNA Pcvisit Pcvisit Remote Host Modul unaffected 22.6.22.1329 custom Windows
CNA Pcvisit Pcvisit Remote Host Modul unaffected 25.12.3.1745 Windows

References

ReferenceSourceLinkTags
labs.infoguard.ch/advisories/cve-2026-0539_pcvisit_local-privilege-escalation [email protected] labs.infoguard.ch
www.pcvisit.de/kundenbereich/release-notes [email protected] www.pcvisit.de
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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