CVE-2021-26622: Genian NAC remote code execution vulnerability

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-03-25 · updated 2026-06-17
Weakness: CWE-20

Description

An remote code execution vulnerability due to SSTI vulnerability and insufficient file name parameter validation was discovered in Genian NAC. Remote attackers are able to execute arbitrary malicious code with SYSTEM privileges on all connected nodes in NAC through this vulnerability.

Affected products

Genians Genian Nac: from 4.0 through 4.0.145.0831; from 5.0 through 5.0.42.0827

References

https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66580
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66580

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