CVE-2025-36243 Multiple Vulnerabilities in IBM Concert Software.

Medium 5.4 Published 17 Feb 2026 Updated 10 Mar 2026

An authenticated attacker can exploit SSRF in IBM Concert to send unauthorized requests, enabling network enumeration and facilitating further attacks.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-36243?

CVE-2025-36243 is a medium-severity server-side request forgery vulnerability in Ibm Concert, published on 17 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Concert 1.0.0 through 2.1.0 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

Weakness: CWE-918

Which versions are affected by CVE-2025-36243?

It affects 1 product.

Products include Ibm Concert.

How do I fix CVE-2025-36243?

No fix has been published for CVE-2025-36243 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2025-36243 being exploited?

There is no known exploitation of CVE-2025-36243 in the wild and no public exploit code.

All Ibm Concert vulnerabilities

Sources

Also known as GHSA-95x4-2j8q-mf8q.