---
id: "CVE-2026-18525"
page: "https://infrastack.ai/live/CVE-2026-18525"
kind: "vulnerability"
aliases: ["CVE-2026-18525"]
title: "IBM Secure Proxy: authenticated remote user can cause denial of service"
severity: "medium"
cvss: 4.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["ibm", "infrastructure", "secure-proxy", "self-hosted"]
not_affected_if: ["version-outside-range"]
published_at: "2026-11-08T18:17:04+00:00"
first_seen_at: "2026-11-08T18:22:22+00:00"
updated_at: "2026-11-08T18:23:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18525", "first_seen_at": "2026-11-08T18:22:22+00:00"}]
exploit_sources: []
---

# IBM Secure Proxy: authenticated remote user can cause denial of service

Link for people: https://infrastack.ai/live/CVE-2026-18525 (this .md is for agents)

IBM Secure Proxy versions 6.1.0.0 through 6.2.1.2 do not properly validate listener IP address and port settings. A remote attacker with a valid login can use this to cause a denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed IBM Secure Proxy version against the affected range 6.1.0.0 through 6.2.1.2

## Timeline

- 2026-11-08T18:22:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-18525

## From the sources

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.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_