CVE-2026-17091
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Summary
IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call to inject an arbitrary amount of data into hypervisor or partition memory, resulting in either a crash causing a full platform re-IPL and terminating all hosted partitions, or corruption of hypervisor or partition memory. The PowerVM hypervisor will restart automatically; however, repeated exploitation could result in a sustained availability impact. Successful exploitation results in an integrity and availability impact to the managed system.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| IBM | PowerVM Hypervisor | FW1120.00 | affected |
| IBM | PowerVM Hypervisor | FW1110.00 <= FW1110.30 | affected |
| IBM | PowerVM Hypervisor | FW1060.00 <= FW1060.80 | affected |
| IBM | PowerVM Hypervisor | FW950.00 <= FW950.H2 | affected |
Weaknesses
- CWE-190: CWE-190 Integer Overflow or Wraparound
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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