Vulnerability · Published Sep 22, 2026 · Assigned by ibm

CVE-2025-12767Multiple Vulnerabilities in IBM Concert Software

Medium 5.3

In plain English

A medium-severity resource allocation without limits in Concert from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.5%top 57.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
IBM	Concert	1.0.0 – through 3.0.0

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

https://www.ibm.com/support/pages/node/7288830 vendor-advisory, patch