CVE-2020-35851: HGiga MailSherlock - Command Injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-31 · updated 2026-06-17
Weakness: CWE-78

Description

HGiga MailSherlock does not validate specific parameters properly. Attackers can use the vulnerability to launch Command inject attacks remotely and execute arbitrary commands of the system.

Affected products

HGiga Msr45 Isherlock-User: before 4.5-115 — fixed in 4.5-115
HGiga Ssr45 Isherlock-User: before 4.5-115 — fixed in 4.5-115

How to fix

Upgrade to a fixed version: HGiga Msr45 Isherlock-User 4.5-115; HGiga Ssr45 Isherlock-User 4.5-115. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-4264-f10f4-2.html
https://www.twcert.org.tw/en/cp-139-4264-f10f4-2.html

Get alerted when CVE-2020-35851 or the next vulnerability affects your stack