Numeric Truncation Error in OpenSSL - CVE-2025-15469
Published: January 27, 2026
Vulnerability identifier: #VU122078
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-15469
CWE-ID: CWE-197
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenSSL Software Foundation
Affected software:
OpenSSL
OpenSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to "openssl dgst" one-shot codepath silently truncates inputs larger than 16MB. A remote attacker can spoof contents of the signed message.
Note, the issue affects only the command-line tool behavior.
How to mitigate CVE-2025-15469
Install updates from vendor's website.