How severe is CVE-2021-29795?

CVE-2021-29795 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-29795 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29795?

CVE-2021-29795 primarily affects Ibm Powervm Hypervisor. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-29795?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-29795 published?

CVE-2021-29795 was published on 2021-09-21 and last updated on 2026-06-17.

CVE-2021-29795

CVE-2021-29795 is a medium-severity vulnerability in Ibm Powervm Hypervisor with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
CVSS v2: 4.9
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Ibm Powervm Hypervisor
Published: 2021-09-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-29795?: 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.
How severe is CVE-2021-29795?: CVE-2021-29795 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-29795 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29795?: CVE-2021-29795 primarily affects Ibm Powervm Hypervisor. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-29795?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-29795 published?: CVE-2021-29795 was published on 2021-09-21 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:ibm:powervm_hypervisor:fw860:*:*:*:*:*:*:*
cpe:2.3:o:ibm:powervm_hypervisor:fw930:*:*:*:*:*:*:*
cpe:2.3:o:ibm:powervm_hypervisor:fw940:*:*:*:*:*:*:*
cpe:2.3:o:ibm:powervm_hypervisor:fw950:*:*:*:*:*:*:*

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