CVE-2026-78212: 4MOSAn Security Technology｜4MOSAn Management Center - Arbitrary File Read

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-24 · updated 2026-10-12
Weakness: CWE-23

Description

4MOSAn developed by 4MOSAn Security Technology Co., Ltd. has an Arbitrary File Read vulnerability. Unauthenticated remote attackers can exploit a Relative Path Traversal flaw to download arbitrary system files.

Affected products

4MOSAn Security Technology 4MOSAn Management Center: before 20260621 — fixed in 20260621

How to fix

Upgrade to a fixed version: 4MOSAn Security Technology 4MOSAn Management Center 20260621. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-11123-79a92-2.html
https://www.twcert.org.tw/tw/cp-132-11119-25dfc-1.html

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