Vulnerability in Checkmal Appcheck Pro
CVE-2026-18605
A security flaw has been discovered in CheckMAL AppCheck Pro 3.1.43.10. Affected is an unknown function in the library AppCheckD.sys of the component Kernel Mini-Filter Driver. Performing a manipulation results in uncontrolled search path. The attack requires a local approach. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (5.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Checkmal Appcheck Pro — versions 3.1.43.10
Weakness classification (CWE)
References
- vuldb.com/vuln/385528 (vdb-entry)
- vuldb.com/vuln/385528/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-18605 (third-party-advisory)
- vuldb.com/submit/852044 (third-party-advisory)
- opcodic.notion.site/AppCheck-Pro-Vulnerability-Analysis-Report-2f48e7fec518803e… (exploit)
Frequently asked questions
- What is CVE-2026-18605?
- CVE-2026-18605 is a high-severity vulnerability in Checkmal Appcheck Pro, classified under Untrusted Search Path. CVSS score: 7.0/10. Published 2026-08-03.
- How severe is CVE-2026-18605?
- High severity. CVSS v3 base score is 7.0 out of 10.