CVE-2021-38917
IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service access...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-38917- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/PR:N/UI:N/I:H/AC:H/C:H/A:N/S:U/RC:C/RL:O/E:U - Updated
- 2026-11-02
EUVDEUVD-2021-25354
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.
- Record
EUVD-2021-25354- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/PR:N/UI:N/I:H/AC:H/C:H/A:N/S:U/RC:C/RL:O/E:U - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jrj8-w63v-jf8f No score
IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service access...
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.
- Record
GHSA-jrj8-w63v-jf8f- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-38917- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 9.4 High
AV:N/AC:L/Au:N/C:C/I:C/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-38917 is a high vulnerability (CVSS 7.4) in Ibm Powervm Hypervisor, published December 10, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.59%, the 75th percentile. No source names a fixed version.