CVE-2026-40032

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.72% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 53.8% of scored records. A rank, not a probability.

NVD base score

8.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-07-24.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-08 21:35Z6 MO AGO

Last updated

2026-06-23 16:16Z4 MO AGO

Reserved

2026-04-08

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

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

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

ac4a280367a3d167f6e4fb4320cff96c8e865b9923680075a4f582a25042bdd7

• github.comPull Requesthttps://github.com/tclahr/uac/pull/443issue-tracking
• github.comPatch Commit #1https://github.com/tclahr/uac/commit/cb95d7166cd47908e1189d9669e43f9a6d3d707fpatch
• github.comPatch Commit #2https://github.com/tclahr/uac/commit/50ace60e172e38feb78347bdf579311c23eff078patch
• github.comPatch Commit #3https://github.com/tclahr/uac/commit/d0fca5e36d8d6a33a4404f0f6fe92b0424544589patch
• github.comRelated Issuehttps://github.com/tclahr/uac/issues/429issue-tracking
• mobasi.aiMobasi Sentinel Vulnerability Indexhttps://mobasi.ai/sentinelvendor-advisory
• www.vulncheck.comVulnCheck Advisory: UAC < 3.3.0-rc1 Command Injection via Placeholder Substitutionhttps://www.vulncheck.com/advisories/uac-rc1-command-injection-via-placeholder-substitutionthird-party-advisory