CVE-2022-35222: HiCOS Citizen verification component - Stack Buffer Overflow

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-08-02 · updated 2026-06-17
Weakness: CWE-787

Description

HiCOS Citizen verification component has a stack-based buffer overflow vulnerability due to insufficient parameter length validation. An unauthenticated physical attacker can exploit this vulnerability to execute arbitrary code, manipulate system command or disrupt service.

Affected products

HINET HiCOS’ client-side citizen digital certificate: 3.0.3.30306, 3.0.3.30404, 3.1.0.00002

References

https://www.twcert.org.tw/tw/cp-132-6363-f5ec2-1.html
https://www.twcert.org.tw/tw/cp-132-6363-f5ec2-1.html

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