Quick answers
- Is CVE-2026-16832 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16832 being exploited in the wild.
- How severe is CVE-2026-16832?
- High severity, with a CVSS score of 8.4, published 19 August 2026.
- Which products and versions are affected?
- IBM Power Systems Firmware FW1120.00, FW1110.00-FW1110.30, FW1060.00-FW1060.80, FW950.00-FW950.H2.
- Is there a fix for CVE-2026-16832?
- A patch was published on 2026-08-15: Patches available: FW1120.01, FW1110.31, FW1060.81, FW950.H3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-16832 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-16832?
- 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.
Technical details
The vulnerability is a stack-based buffer overflow (CWE-121) in the FSP management network protocol used by IBM Power Systems Firmware. It requires authenticated HMC administrator access to exploit, meaning an attacker must first obtain valid admin credentials for the Hardware Management Console. The vulnerability is reachable over the network (AV:A indicates adjacent network) with no additional user interaction required. Successful exploitation grants the attacker arbitrary code execution on the service processor with full system control. Patches are available: FW1120.01+, FW1110.31+, FW1060.81+, and FW950.H3+.
Affected products
- IBM Power Systems Firmware FW1120.00, FW1110.00-FW1110.30, FW1060.00-FW1060.80, FW950.00-FW950.H2
Timeline
- 2026-08-15: disclosed: Initial Security Bulletin publication
- 2026-08-15: patched: Patches available: FW1120.01, FW1110.31, FW1060.81, FW950.H3