What is CVE-2023-36658?

CVE-2023-36658 is a high-severity vulnerability in Opswat Media Validation Agent, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2023-09-15.

How severe is CVE-2023-36658?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Opswat Media Validation Agent

CVE-2023-36658

An issue was discovered in OPSWAT MetaDefender KIOSK 4.6.1.9996. It has an unquoted service path that can be abused locally.

Published 2023-09-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (12.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.3% 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

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

docs.opswat.com/mdkiosk (Product, Release Notes)
docs.opswat.com/mdkiosk/release-notes/cve-2023-36658 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2023-36658?: CVE-2023-36658 is a high-severity vulnerability in Opswat Media Validation Agent, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2023-09-15.
How severe is CVE-2023-36658?: High severity. CVSS v3 base score is 7.8 out of 10.