What is CVE-2026-18525?

CVE-2026-18525 is a medium-severity vulnerability in IBM Secure Proxy, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2026-11-08.

How severe is CVE-2026-18525?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Improper input validation in IBM Secure Proxy

CVE-2026-18525

IBM Secure Proxy 6.1.0.0 through 6.2.1.2 could allow a remote authenticated attacker to cause a denial of service due to improper validation of listener IP address and port.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-11-08 · last modified 2026-11-08.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Secure Proxy

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.ibm.com/support/pages/node/7289712 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-18525?: CVE-2026-18525 is a medium-severity vulnerability in IBM Secure Proxy, classified under Improper Input Validation. CVSS score: 4.9/10. Published 2026-11-08.
How severe is CVE-2026-18525?: Medium severity. CVSS v3 base score is 4.9 out of 10.