CVE-2025-33015 Multiple Vulnerabilities in IBM Concert Software

High 8.8 Published 20 Jan 2026 Updated 26 Feb 2026

Attackers can upload malicious files to IBM Concert due to lack of validation, potentially leading to code execution.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-33015?

CVE-2025-33015 is a high-severity vulnerability in Ibm Concert, published on 20 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

IBM Concert 1.0.0 through 2.1.0 is vulnerable to malicious file upload by not validating the content of the file uploaded to the web interface.

Weakness: CWE-434

Which versions are affected by CVE-2025-33015?

It affects 1 product.

Products include Ibm Concert.

How do I fix CVE-2025-33015?

No fix has been published for CVE-2025-33015 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-33015 being exploited?

There is no known exploitation of CVE-2025-33015 in the wild and no public exploit code.

All Ibm Concert vulnerabilities

Sources

Also known as GHSA-gmqg-6pjr-jj57.