All vulnerabilities
CVE-2026-96263

PowerVM Hypervisor: IBM Power Systems Firmware Buffer Overflow

IBM PowerVM HypervisorContainers & cloud
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published12 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

IBM Power Systems Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in the host firmware boot process image validation path. An attacker with service access to the service processor can supply a maliciously crafted code update image, allowing arbitrary code to be executed on the host system. Successful exploitation could result in a confidentiality, integrity, and availability impact to the affected host system.

Text from CVE List

Affected versions 3

  • PowerVM Hypervisoraffected: FW1120.00 through FW1120.01CVE List
  • PowerVM Hypervisoraffected: FW1110.00 through FW1110.31CVE List
  • PowerVM Hypervisoraffected: FW1060.00 through FW1060.81CVE List

References 1