Vulnerability · Published Oct 19, 2026 · Assigned by ibm

CVE-2026-1501IBM Concert Software Improper Certificate Validation

Low 3.7

In plain English

A low-severity improper certificate validation 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 0.1% (higher than 0% of all known vulnerabilities).

Severity (CVSS 3.1)3.7Low

Exploit odds (30 days)<0.1%top 99.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

IBM Concert 1.0 through 3.0.0 is vulnerable to Improper Certificate Validation.

Affected products (as reported)

Vendor	Product	Versions
IBM	Concert	1.0.0 – through 3.0.0

Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

References

https://www.ibm.com/support/pages/node/7292374 vendor-advisory, patch