CVE-2026-18605

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

Deferred. NVD last modified this record on 2026-08-12.

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

2026-08-03 16:00Z1 MO AGO

Last updated

2026-08-03 16:26Z1 MO AGO

Reserved

2026-08-03

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

High (CVSS 7.3)

CNA CVSS vector

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

Weaknesses

• CWE-426Untrusted Search PathBase
• CWE-427Uncontrolled Search Path ElementBase

Data version

5.2

Document digest

d557cf6a06b1e341f36734a61e7616d46950bd969fb8f8c28dde5b28142e60c7

• vuldb.comVDB-385528 | CheckMAL AppCheck Pro Kernel Mini-Filter Driver AppCheckD.sys uncontrolled search pathhttps://vuldb.com/vuln/385528vdb-entry
• vuldb.comVDB-385528 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/385528/ctisignaturepermissions-required
• vuldb.comCVE-2026-18605 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-18605third-party-advisory
• vuldb.comSubmit #852044 | CheckMAL AppCheck Pro 3.1.43.10 Creation of Temporary File in Directory with Insecure Permissionhttps://vuldb.com/submit/852044third-party-advisory
• opcodic.notion.sitehttps://opcodic.notion.site/AppCheck-Pro-Vulnerability-Analysis-Report-2f48e7fec518803e8e7fe18e71d77dac?pvs=74exploit