What is CVE-2024-5400?

CVE-2024-5400 is a high-severity vulnerability in Openfind Mail2000, classified under OS Command Injection. CVSS score: 8.8/10. Published 2024-05-27.

How severe is CVE-2024-5400?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Openfind Mail2000

CVE-2024-5400

Openfind Mail2000 does not properly filter parameters of specific CGI. Remote attackers with regular privileges can exploit this vulnerability to execute arbitrary system commands on the remote server.

Vulnerability class: Command Injection (OS Command Injection)

Published 2024-05-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Openfind Mail2000 — versions 6.0, 7.0, 8.0
Openfind Mail2000 V8.0 — versions earlier

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.twcert.org.tw/tw/cp-132-7819-9661a-1.html (Vendor Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2024-5400?: CVE-2024-5400 is a high-severity vulnerability in Openfind Mail2000, classified under OS Command Injection. CVSS score: 8.8/10. Published 2024-05-27.
How severe is CVE-2024-5400?: High severity. CVSS v3 base score is 8.8 out of 10.