CVE-2023-33850 HIGH

CVE-2023-33850: IBM GSKit-Crypto information disclosure

Vendor Ibm
Product TXSeries for Multiplatforms
Weakness CWE-203
Published August 22, 2023
Last update November 3, 2025

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information.

Key dates

02Disclosure timeline

August 22, 2023 CVE published
November 3, 2025 Record updated