Quick answers
- Is CVE-2026-16678 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16678 being exploited in the wild.
- How severe is CVE-2026-16678?
- Medium severity, with a CVSS score of 4.5, published 12 October 2026.
- Which products and versions are affected?
- IBM Power Systems Firmware FW1110.00-FW1110.31, FW1120.00-FW1120.01, FW1060.00-FW1060.81.
- Is there a fix for CVE-2026-16678?
- Yes: fixed in FW1110.32 (1110_160), FW1120.02 (1120_195) or newer; FW1060.82 (1060_199) or newer. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-16678 attacked?
- It is attacked from the adjacent network.
- Am I affected by CVE-2026-16678?
- Check whether you run IBM Power Systems Firmware 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.
How to fix
- Fixed in: FW1110.32 (1110_160), FW1120.02 (1120_195) or newer; FW1060.82 (1060_199) or newer
Technical details
This vulnerability is a resource exhaustion issue (CWE-772: Missing Release of Resource after Effective Lifetime) in the Virtualization Management Interface of IBM Power Systems Firmware. An authenticated remote attacker can trigger improper connection resource management to cause a denial of service. The CVSS vector indicates adjacent network access, high privilege requirement, and availability impact.
Affected products
- IBM Power Systems Firmware FW1110.00-FW1110.31, FW1120.00-FW1120.01, FW1060.00-FW1060.81
Timeline
- 2026-09-30: disclosed