What is CVE-2023-29261?

CVE-2023-29261 is a medium-severity vulnerability in IBM Sterling External Authentication Server, classified under CWE-922. CVSS score: 5.1/10. Published 2023-09-05.

How severe is CVE-2023-29261?

Medium severity. CVSS v3 base score is 5.1 out of 10.

Vulnerability in IBM Sterling External Authentication Server

CVE-2023-29261

IBM Sterling Secure Proxy 6.0.3 and 6.1.0 could allow a local user with specific information about the system to obtain privileged information due to inadequate memory clearing during operations. IBM X-Force ID: 252139.

Published 2023-09-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.1 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (5.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

IBM Sterling External Authentication Server — versions 6.0.3.0, 6.1.0
IBM Sterling Secure Proxy — versions 6.0.3, 6.1.0

Weakness classification (CWE)

CWE-922

References

https://www.ibm.com/support/pages/node/7029765 (vendor-advisory, Broken Link)
exchange.xforce.ibmcloud.com/vulnerabilities/252139 (VDB Entry, vdb-entry, Vendor Advisory)
www.ibm.com/support/pages/node/7029765 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-29261?: CVE-2023-29261 is a medium-severity vulnerability in IBM Sterling External Authentication Server, classified under CWE-922. CVSS score: 5.1/10. Published 2023-09-05.
How severe is CVE-2023-29261?: Medium severity. CVSS v3 base score is 5.1 out of 10.