Medium (6.8) in hinet hicos natural person credential component client. EPSS 0.2% chance of exploitation in the next 30 days.
HICOS’ client-side citizen digital certificate component has a stack-based buffer overflow vulnerability when reading IC card due to insufficient parameter length validation for token information. An unauthenticated physical attacker can exploit this vulnerability to execute arbitrary code, manipulate system data or terminate service.
Severity
CVSS 3.1
6.8 medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-31)