CVE-2021-29795 json
IBM PowerVM Hypervisor FW860, FW930, FW940, and FW950 could allow a local user to create a specially crafted sequence of hypervisor calls f…
published 2021-09-21 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16269
- cvss
- 6.0
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
IBM PowerVM Hypervisor FW860, FW930, FW940, and FW950 could allow a local user to create a specially crafted sequence of hypervisor calls from a partition that could crash the system. IBM X-Force ID: 203557.
Patch / fix
- ibm.com/support/pages/node/6490877 advisory
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.0 | CVSS:3.0/PR:H/S:C/AV:L/A:H/C:N/UI:N/AC:L/I:N/E:U/RC:C/RL:O |
| NVD | 3.1 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
| CNA | 3.0 | 6.0 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- IBM PowerVM Hypervisor
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
ibm.com
/support/pages/node/6490877
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/203557
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2021-29795
- NVD CVE-2021-29795
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.