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CVE-2023-30438

27
FAUCET Score

CVE-2023-30438 is an internally discovered vulnerability affecting PowerVM on IBM Power9 and Power10 systems. An attacker with privileged access to a logical partition could exploit this to bypass isolation, potentially leading to data leakage or arbitrary code execution in other logical partitions on the same physical server. This vulnerability has a CVSS score of 8.8 (High), indicating a local attack vector with low complexity, requiring low privileges, and resulting in high impact to confidentiality, integrity, and availability. Currently, there is no public exploit intelligence, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= fw950, < fw950.71CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw1010.00, < fw1010.51CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw1030.00, < fw1030.11CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw1020.00, < fw1020.31CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.3CRITICAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.5
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 46th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/252706
VDB EntryVendor Advisory
ibm.com / support/pages/node/6993021
Vendor Advisory