---
id: "CVE-2026-17427"
page: "https://infrastack.ai/live/CVE-2026-17427"
kind: "vulnerability"
aliases: ["CVE-2026-17427"]
title: "IBM Power Systems firmware: oversized input can crash the system remotely"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["firmware", "ibm-power", "infrastructure", "on-prem", "power-systems"]
not_affected_if: ["firmware-outside-listed-ranges"]
published_at: "2026-11-08T20:17:24+00:00"
first_seen_at: "2026-11-08T20:22:47+00:00"
updated_at: "2026-11-08T20:23:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17427", "first_seen_at": "2026-11-08T20:22:47+00:00"}]
exploit_sources: []
---

# IBM Power Systems firmware: oversized input can crash the system remotely

Link for people: https://infrastack.ai/live/CVE-2026-17427 (this .md is for agents)

IBM Power Systems firmware does not properly check the length of input it receives, so a remote attacker can cause a denial of service. The sources describe a crash or outage, not code execution or data theft.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the firmware level on the Power Systems server (for example in the HMC or the Advanced System Management interface), and compare it with the affected ranges `FW1060.00` through `FW1060.81`, `OP940.00` through `OP940.A2`, `OP910.00` through `OP910.95`, and `OP940.00` through `OP940.82`.

## Timeline

- 2026-11-08T20:22:47+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-17427

## From the sources

IBM Power Systems Firmware FW1060.00 through FW1060.81, OP940.00 through OP940.A2, OP910.00 through OP910.95, and OP940.00 through OP940.82 could allow a remote attacker to cause a denial of service due to improper validation of input length.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_