What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-22 · updated 2026-06-17
• Weakness: CWE-203

Description

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.

Affected products

• IBM CICS TX Advanced: 11.1, 10.1
• IBM Txseries For Multiplatform: 8.1, 9.1, 8.2

References

• https://www.ibm.com/support/pages/node/7010369
• https://www.ibm.com/support/pages/node/7022413
• https://www.ibm.com/support/pages/node/7022414
• https://exchange.xforce.ibmcloud.com/vulnerabilities/257132
• https://security.netapp.com/advisory/ntap-20241108-0002/
• https://www.ibm.com/support/pages/node/7010369
• https://www.ibm.com/support/pages/node/7022413
• https://www.ibm.com/support/pages/node/7022414

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