What’s Vulnerable › Vulnerabilities

CVE-2020-25843: CHANGING Inc. NHIServiSignAdapter Windows Versions - Heap Overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-31 · updated 2026-06-17
• Weakness: CWE-122

Description

NHIServiSignAdapter fails to verify the length of digital credential files’ path which leads to a heap overflow loophole. Remote attackers can use the leak to execute code without privilege.

Affected products

• CHANGING Inc. NHIServiSignAdapter: 1.0.20.0218

References

• https://www.twcert.org.tw/tw/cp-132-4271-951cd-1.html
• https://www.twcert.org.tw/tw/cp-132-4271-951cd-1.html

Get alerted when CVE-2020-25843 or the next vulnerability affects your stack