How severe is CVE-2023-30438?

CVE-2023-30438 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-30438 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30438?

CVE-2023-30438 affects Ibm Powervm Hypervisor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-30438?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-30438 published?

CVE-2023-30438 was published on 2023-05-17 and last updated on 2026-06-17.

CVE-2023-30438

CVE-2023-30438 is a critical-severity vulnerability in Ibm Powervm Hypervisor with a CVSS 3.x base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.3)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Powervm Hypervisor
Published: 2023-05-17
Last modified: 2026-06-17

Description

An internally discovered vulnerability in PowerVM on IBM Power9 and Power10 systems could allow an attacker with privileged user access to a logical partition to perform an undetected violation of the isolation between logical partitions which could lead to data leakage or the execution of arbitrary code in other logical partitions on the same physical server. IBM X-Force ID: 252706.

Frequently asked questions

What is CVE-2023-30438?: An internally discovered vulnerability in PowerVM on IBM Power9 and Power10 systems could allow an attacker with privileged user access to a logical partition to perform an undetected violation of the isolation between logical partitions which could lead to data leakage or the execution of arbitrary code in other logical partitions on the same physical server. IBM X-Force ID: 252706.
How severe is CVE-2023-30438?: CVE-2023-30438 has a CVSS 3.x base score of 9.3, rated critical severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-30438 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30438?: CVE-2023-30438 affects Ibm Powervm Hypervisor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-30438?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-30438 published?: CVE-2023-30438 was published on 2023-05-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*

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