CVE-2026-9157: Remote Code Execution in Gmission Web FAX

Severity: high (CVSS 8.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-21 · updated 2026-07-23
Weakness: CWE-20

Description

Improper input validation, Unrestricted upload of file with dangerous type vulnerability in Gmission Web Fax allows Remote Code Inclusion. This issue affects Web Fax: from 3.0 before 3.1.

Affected products

Gmission Web Fax: from 3.0 before 3.1 — fixed in 3.1

How to fix

Upgrade to a fixed version: Gmission Web Fax 3.1. Check the vendor advisory for mitigations.

References

https://www.gmission.co.kr/fax1

Get alerted when CVE-2026-9157 or the next vulnerability affects your stack