CVE-2021-38923
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to...
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.
- Record
CVE-2021-38923- CVSS 3.0
- 8.0 High
CVSS:3.0/S:C/UI:N/PR:H/AC:H/I:H/A:H/AV:N/C:H/RL:O/E:U/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-25360
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.
- Record
EUVD-2021-25360- CVSS 3.0
- 8.0 High
CVSS:3.0/S:C/UI:N/PR:H/AC:H/I:H/A:H/AV:N/C:H/RL:O/E:U/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6wrx-6f22-3628 No score
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to...
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.
- Record
GHSA-6wrx-6f22-3628- Updated
- 2026-11-02
NVD
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.
- Record
CVE-2021-38923- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - CVSS 3.0
- 8.0 High
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - 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-2021-38923 is a high vulnerability (CVSS 8.0) in Ibm Powervm Hypervisor, published October 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. No source names a fixed version.