CVE-2026-40029

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

0.80% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 56.4% 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

Analyzed. 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

2026-10-27 10:14Z2 DAYS 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

79dfaf746f01a88af8d2f92b7ae1d72aa29aa62f8f89a4eae8ab8b481d60e38c

• github.comPull Requesthttps://github.com/khyrenz/parseusbs/pull/10issue-tracking
• github.comPatch Commithttps://github.com/khyrenz/parseusbs/commit/99f05996494e7e41ea0c7e13145ba20eb793e46bpatch
• mobasi.aiMobasi Sentinel Vulnerability Indexhttps://mobasi.ai/sentinelvendor-advisory
• www.vulncheck.comVulnCheck Advisory: parseusbs < 1.9 Command Injection via Crafted LNK Filenamehttps://www.vulncheck.com/advisories/parseusbs-command-injection-via-crafted-lnk-filenamethird-party-advisory