Untrusted user data can lead to privilege escalation

published 2026-01-30 9mo ago modified 2026-06-17 4mo ago also EUVD-2025-206578

cvss: 5.8; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 2%
public exploits: 0; none known

Chef InSpec versions up to 5.23 and before 7.0.107 creates named pipes with overly permissive default Windows access controls. A local attacker may interfere with the pipe connection process and exploit the insufficient access restrictions to assume the InSpec execution context, potentially resulting in elevated privileges or operational disruption.

This issue affects Chef Inspec: through 5.23 and before 7.0.107

Is CVE-2025-6723 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 9mo ago (2026-01-30)

Exploit prediction

0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.8	CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
CNA	4.0	5.8	CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:L/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

Affected products

Progress Software Chef Inspec

Classification

Weakness

CWE-269 Improper Privilege Management
CWE-287 Improper Authentication

References

docs.chef.io /inspec/

Sources

CVE List CVE-2025-6723
NVD CVE-2025-6723

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