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CVE-2023-30440

24
FAUCET Score

CVE-2023-30440 describes a denial of service and data corruption vulnerability affecting specific versions of IBM PowerVM Hypervisor firmware (FW860.00-B3, FW950.00-70, FW1010.00-50, FW1020.00-30, and FW1030.00-10). A local attacker with control over a partition assigned an SRIOV virtual function (VF) can exploit this to impact a peer partition. The vulnerability has a CVSS score of 7.9 (High), indicating a local attack vector with low complexity, no user interaction required, and potential for partial integrity and high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= fw860, <= fw860.b3CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw950, <= fw950.70CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw1010, <= fw1010.50CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw1020.00, <= fw1020.30CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*
>= fw1030.00, <= fw1030.10CPE matchmatch criteria
cpe:2.3:o:ibm:powervm_hypervisor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
1.4
Impact Score
4.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 12th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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/253175
VDB EntryVendor Advisory
ibm.com / support/pages/node/6997133
Vendor Advisory