CVE-2026-16933
What it is
IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.
At a glance
- Exploitability
- Can be exploited locally on the machine with an admin-level account. High risk of data exposure, data tampering, 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
- PublishedDisclosed publicly on CVE.org and NVD
- 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: 8.2 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-190 · Integer overflow
- Record status
- Analyzed
Affected
- IBM Power System s1122 \(9824-22a\) Firmware < fw1110.31
- IBM Power System s1122 \(9824-22a\) Firmware fw1120.00
- IBM Power System s1124 \(9824-42a\) Firmware < fw1110.31
- IBM Power System s1124 \(9824-42a\) Firmware fw1120.00
- IBM Power System s1122s \(9824-22b\) Firmware < fw1110.31
- IBM Power System s1122s \(9824-22b\) Firmware fw1120.00
- IBM Power System s1114 \(9824-41b\) Firmware < fw1110.31
- IBM Power System s1114 \(9824-41b\) Firmware fw1120.00
Attack profile CVSS 3.1 · 8.2
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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-2026-16933.md and follow it. Check whether this project is affected by CVE-2026-16933. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
