Quick answers
- Is CVE-2026-18163 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18163 being exploited in the wild.
- How severe is CVE-2026-18163?
- Critical severity, with a CVSS score of 9.8, published 22 September 2026.
- Which products and versions are affected?
- IBM Financial Transaction Manager.
- Is there a fix for CVE-2026-18163?
- 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-2026-18163 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-18163?
- Check whether you run IBM Financial Transaction Manager. 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
A deserialization vulnerability in IBM FTM allows remote code execution when the application deserializes untrusted data without proper validation. An attacker can craft malicious serialized objects that execute arbitrary code during the deserialization process. The vulnerability is remotely exploitable over the network with no authentication required.
Affected products
- IBM Financial Transaction Manager
Timeline
- 2026-09-22: disclosed