#VU125562 Unchecked Return Value in OpenSSL - CVE-2026-31790

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Main Vulnerability Database Vulnerabilities #VU125562

#VU125562 Unchecked Return Value in OpenSSL - CVE-2026-31790

Published: April 9, 2026


Vulnerability identifier: #VU125562
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-31790
CWE-ID: CWE-252
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 disclose sensitive information.

The vulnerability exists due to incorrect failure handling in RSA KEM RSASVE encapsulation when processing an attacker-supplied invalid RSA public key with EVP_PKEY_encapsulate(). A remote attacker can supply an invalid RSA public key to disclose sensitive information.

The issue affects applications using RSA/RSASVE encapsulation without validating the supplied public key first.


Remediation

Install security update from vendor's website.

External links