What is CVE-2022-40741?

CVE-2022-40741 is a critical-severity vulnerability in Softnext Mail Sqr Expert, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-10-31.

How severe is CVE-2022-40741?

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

RCE in Softnext Mail Sqr Expert

CVE-2022-40741

Mail SQR Expert’s specific function has insufficient filtering for special characters. An unauthenticated remote attacker can exploit this vulnerability to perform arbitrary system command and disrupt service.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-10-31 · 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: 0.011 (65.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000

Affected products

Softnext Mail Sqr Expert — versions 2dut.190301
Softnext Technologies Corp. Mail Sqr Expert — versions 2dut.190301

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.twcert.org.tw/tw/cp-132-6643-89bfa-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2022-40741?: CVE-2022-40741 is a critical-severity vulnerability in Softnext Mail Sqr Expert, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-10-31.
How severe is CVE-2022-40741?: Critical severity. CVSS v3 base score is 9.8 out of 10.