Quick answers
- Is CVE-2026-96265 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96265 being exploited in the wild.
- How severe is CVE-2026-96265?
- High severity, with a CVSS score of 8.2, published 12 October 2026.
- Which products and versions are affected?
- IBM PowerVM Hypervisor FW1060.00 through FW1060.81.
- Is there a fix for CVE-2026-96265?
- Yes: fixed in 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-2026-96265 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-96265?
- Check whether you run IBM PowerVM Hypervisor 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: FW1060.82(1060_199) or newer
Technical details
A buffer overflow vulnerability (CWE-119) in the PowerVM Hypervisor's service processor mailbox interface allows an authenticated attacker with FSP service-level access to send specially crafted mailbox messages that read or modify arbitrary Hostboot memory regions. Exploitation requires authenticated access and results in complete compromise of host firmware and hypervisor integrity, confidentiality, and availability.
Affected products
- IBM PowerVM Hypervisor FW1060.00 through FW1060.81
Timeline
- 2026-10-12: disclosed
- 2026-09-30: advisory