What is CVE-2023-26276?

CVE-2023-26276 is a medium-severity vulnerability in IBM Qradar Security Information And Event Manager, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.9/10. Published 2023-06-27.

How severe is CVE-2023-26276?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in IBM Qradar Security Information And Event Manager

CVE-2023-26276

IBM QRadar SIEM 7.5.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 248147.

Vulnerability class: POODLE (CVE-2014-3566)

Published 2023-06-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (31.5th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

IBM Qradar Security Information And Event Manager — versions 7.5.0
IBM Security Qradar Siem — versions 7.5.0
Linux Kernel

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

www.ibm.com/support/pages/node/7006081 (vendor-advisory, Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/248147 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2023-26276?: CVE-2023-26276 is a medium-severity vulnerability in IBM Qradar Security Information And Event Manager, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.9/10. Published 2023-06-27.
How severe is CVE-2023-26276?: Medium severity. CVSS v3 base score is 5.9 out of 10.