#VU122083 Type Confusion in OpenSSL - CVE-2025-69420

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Main Vulnerability Database Vulnerabilities #VU122083

#VU122083 Type Confusion in OpenSSL - CVE-2025-69420

Published: January 27, 2026


Vulnerability identifier: #VU122083
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-69420
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
OpenSSL
Software vendor:
OpenSSL Software Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a type confusion error within the TS_RESP_verify_response() function when handling ASN1_TYPE data.. A remote attacker can pass a malformed TimeStamp Response to the application and perform a denial of service attack.


Remediation

Install updates from vendor's website.

External links