Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
9.8

IBM Concert lets remote attacker run commands

CVE-2026-6721 · published 18 days ago
Summary

Versions 1.0.0 to 3.0.0 of IBM Concert can be tricked into executing operating‑system commands supplied by anyone on the network. This could let an attacker run code on the server with the same rights as the application. Apply the vendor’s security update or restrict network access to the software immediately.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm concert <= 3.0.0
>= 1.0.0, <= 3.0.0
Original advisory text
Multiple Vulnerabilities in IBM Concert Software
IBM Concert 1.0.0 through 3.0.0 allows an unauthenticated remote attacker can supply specially crafted input that is incorporated into OS commands, resulting in arbitrary command execution on the underlying system. Successful exploitation allows remote code execution with the privileges of the affected application.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
1% chance of attack within 30 days
Type
CWE-78OS Command Injection
Timeline
Published23 Sep 2026
Updated7 Oct 2026
First seen23 Sep 2026
Sources
CVE-2026-6721 · NVD
CVE-2026-6721 · MITRE
Track software like this
Free during beta