What is CVE-2025-3363?

CVE-2025-3363 is a critical-severity vulnerability in Hgiga Isherlock 4.5, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-04-08.

How severe is CVE-2025-3363?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Hgiga Isherlock 4.5

CVE-2025-3363

The web service of iSherlock from HGiga has an OS Command Injection vulnerability, allowing unauthenticated remote attackers to inject arbitrary OS commands and execute them on the server.

Vulnerability class: Command Injection (OS Command Injection)

Published 2025-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.001

Affected products

Hgiga Isherlock 4.5 — versions 0
Hgiga Isherlock 5.5 — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.twcert.org.tw/tw/cp-132-10054-84588-1.html (third-party-advisory)
www.twcert.org.tw/en/cp-139-10056-c553a-2.html (third-party-advisory)

Frequently asked questions

What is CVE-2025-3363?: CVE-2025-3363 is a critical-severity vulnerability in Hgiga Isherlock 4.5, classified under OS Command Injection. CVSS score: 9.8/10. Published 2025-04-08.
How severe is CVE-2025-3363?: Critical severity. CVSS v3 base score is 9.8 out of 10.