Vulnerability · Published Dec 31, 2020 · Assigned by twcert
CVE-2020-25843CHANGING Inc. NHIServiSignAdapter Windows Versions - Heap Overflow
High 8.1
In plain English
A high-severity heap buffer overflow in NHIServiSignAdapter from CHANGING Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)2.0%top 19.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CHANGING Inc. | NHIServiSignAdapter | 1.0.20.0218 |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.twcert.org.tw/tw/cp-132-4271-951cd-1.html x_refsource_MISC