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TI-2021-16362 Aliases CVE-2021-38917GHSA-jrj8-w63v-jf8f

IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service…

Priority MEDIUM 42Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service access to the FSP can read and write arbitrary host system memory through a series of carefully crafted service procedures. IBM X-Force ID: 210018.

Why it matters now

EPSS 0.01587 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMPowerVM HypervisorFW940; FW950; FW860—No fix listedCNA
  • PowerVM Hypervisor VendorIBM Affected FW940; FW950; FW860 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:ibm:powervm_hypervisor:fw860:*:*:*:*:*:*:*fw860VulnerableIBM
cpe:2.3:o:ibm:powervm_hypervisor:fw940:*:*:*:*:*:*:*fw940VulnerableIBM
cpe:2.3:o:ibm:powervm_hypervisor:fw950:*:*:*:*:*:*:*fw950VulnerableIBM
  • cpe:2.3:o:ibm:powervm_hypervisor:fw860:*:*:*:*:*:*:* Versions fw860 Vulnerable ·IBM
  • cpe:2.3:o:ibm:powervm_hypervisor:fw940:*:*:*:*:*:*:* Versions fw940 Vulnerable ·IBM
  • cpe:2.3:o:ibm:powervm_hypervisor:fw950:*:*:*:*:*:*:* Versions fw950 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38917
  2. 2026-10-03 Alias added: GHSA-jrj8-w63v-jf8f

References

Advisory 1

  • TI-2022-15241 IBM Power FW security bypass CVSS 3.1CRITICAL 9.8
  • TI-2023-14280 IBM PowerVM gain access CVSS 3.1CRITICAL 9.3
  • TI-2021-16363 IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM… CVSS 3.1HIGH 7.5
  • TI-2023-14281 IBM PowerVM Hypervisor denial of service CVSS 3.1HIGH 7.9
  • TI-2023-10961 IBM PowerVM Hypervisor information disclosure CVSS 3.1HIGH 7.5
  • TI-2021-16379 IBM PowerVM Hypervisor FW940, FW950, and FW1010 could allow an authenticated user to… CVSS 3.1MEDIUM 6.5
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences