Quick answers
- Is CVE-2026-6718 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-6718 being exploited in the wild.
- How severe is CVE-2026-6718?
- Medium severity, with a CVSS score of 6.2, published 23 September 2026.
- Which products and versions are affected?
- IBM Concert 1.0.0 through 3.0.0.
- Is there a fix for CVE-2026-6718?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-6718 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-6718?
- Check whether you run IBM Concert at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An improper access control vulnerability in IBM Concert's file handling mechanism allows unauthorized modification of application files. The vulnerability affects versions 1.0.0 through 3.0.0 and requires network access to the application. The issue stems from insufficient permission validation before file modification operations.
Affected products
- IBM Concert 1.0.0 through 3.0.0
Timeline
- 2026-09-23: disclosed