Vulnerability · Published Aug 18, 2025 · Assigned by ibm

CVE-2025-33090IBM Concert Software denial of service

High 7.5

In plain English

A high-severity regular-expression denial of service in Concert Software from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.4%top 65.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

IBM Concert Software 1.0.0 through 1.1.0 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 Software	1.0.0 – through 1.1.0

Weakness: CWE-1333 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://www.ibm.com/support/pages/node/7242354 vendor-advisory, patch