CVE-2023-33850

Name: CVE-2023-33850
Creator: NVD / NIST
Published: 2023-08-22T21:15:07.837+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.85%

Last modified Jun 17, 2026

CVE-2023-33850 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.85%

53.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ibm	Txseries For Multiplatform	8.1
Ibm	Txseries For Multiplatform	9.1
Ibm	Txseries For Multiplatform	8.2
Ibm	Cics Tx	11.1
Ibm	Cics Tx	10.1

References

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

Timeline

Published: Aug 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33850?

How severe is CVE-2023-33850?

CVE-2023-33850 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33850?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-33850?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST