CVE-2025-12767 Multiple Vulnerabilities in IBM Concert Software
Remote attackers can cause denial of service in IBM Concert via resource exhaustion using crafted regular expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-12767?
CVE-2025-12767 is a medium-severity denial of service vulnerability in IBM Concert, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM Concert 1.0.0 through 3.0.0 could allow a remote attacker to cause a denial of service using a specially crafted regular expression that would cause excessive resource consumption.
Weakness: CWE-770
Which versions are affected by CVE-2025-12767?
How do I fix CVE-2025-12767?
No fix has been published for CVE-2025-12767 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-12767 being exploited?
There is no known exploitation of CVE-2025-12767 in the wild and no public exploit code.
Sources
Also known as GHSA-75pq-gw98-rfmh.