CVE-2023-30440

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. High risk of service disruption.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-05-23 14:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 05:54 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 6.7 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-05-23 14:15 UTC

Last modified

2026-06-17 05:54 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• IBM Powervm Hypervisor ≤ fw860.b3
• IBM Powervm Hypervisor ≤ fw950.70
• IBM Powervm Hypervisor ≤ fw1010.50
• IBM Powervm Hypervisor ≤ fw1020.30
• IBM Powervm Hypervisor ≤ fw1030.10

Attack profile CVSS 3.1 · 6.7

Attack vector

Local

Complexity

High

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-30440.md and follow it. Check whether this project is affected by CVE-2023-30440. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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