CVE-2023-30440

Name: CVE-2023-30440
Creator: NVD / NIST
Published: 2023-05-23T14:15:09.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.9/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2023-30440 is a high-severity vulnerability rated 7.9/10 on the CVSS scale. IBM PowerVM Hypervisor FW860.00 through FW860.B3, FW950.00 through FW950.70, FW1010.00 through FW1010.50, FW1020.00 through FW1020.30, and FW1030.00 through FW1030.10 could allow a local attacker with control a partition that has been assigned SRIOV virtual function (VF) to cause a denial of service to a peer partition or arbitrary data corruption. IBM X-Force ID: 253175.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

IBM PowerVM Hypervisor FW860.00 through FW860.B3, FW950.00 through FW950.70, FW1010.00 through FW1010.50, FW1020.00 through FW1020.30, and FW1030.00 through FW1030.10 could allow a local attacker with control a partition that has been assigned SRIOV virtual function (VF) to cause a denial of service to a peer partition or arbitrary data corruption. IBM X-Force ID: 253175.

Metrics

CVSS 3.1

7.9/10

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

EPSS Probability

0.18%

8.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Ibm	Powervm Hypervisor	>= fw860, <= fw860.b3
Ibm	Powervm Hypervisor	>= fw950, <= fw950.70
Ibm	Powervm Hypervisor	>= fw1010, <= fw1010.50
Ibm	Powervm Hypervisor	>= fw1020.00, <= fw1020.30
Ibm	Powervm Hypervisor	>= fw1030.00, <= fw1030.10

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/253175VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6997133Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/253175VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6997133Vendor Advisory

Timeline

Published: May 23, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-30440?

How severe is CVE-2023-30440?

CVE-2023-30440 has a CVSS score of 7.9/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2023-30440?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-30440?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST