Quick answers
- Is CVE-2026-16828 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16828 being exploited in the wild.
- How severe is CVE-2026-16828?
- High severity, with a CVSS score of 7.6, published 19 August 2026.
- Which products and versions are affected?
- IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2.
- Is there a fix for CVE-2026-16828?
- A patch was published: FW1120.01 or newer, FW1110.31 or newer, FW1060.81 or newer, FW950.H3 or newer Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-16828 attacked?
- It is attacked from the adjacent network, in device firmware.
- Am I affected by CVE-2026-16828?
- 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 an out-of-bounds read (CWE-125) in the ASMI web interface of IBM Power Systems firmware. An unauthenticated attacker with network access to the management network can send a crafted request to trigger the out-of-bounds read, causing the ASMI web server to crash with potential memory corruption. The ASMI interface automatically restarts after a crash, but repeated exploitation can sustain a denial of service to the management interface, impacting both integrity and availability. No authentication is required, and the attack is feasible from the adjacent management network with low complexity.
Affected products
- IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2
Timeline
- 2026-08-19: disclosed
- patched: FW1120.01 or newer, FW1110.31 or newer, FW1060.81 or newer, FW950.H3 or newer