---
title: "CVE-2026-96265: IBM Power Systems Firmware - Broken Access Control"
description: "IBM Power Systems Firmware FW1060.00 through FW1060.81 contains a broken access control vulnerability caused by improper validation in the service processor mailbox interface, letting authenticated service-level attackers read or modify Hostboot memory, exploit requires authenticated service-level access."
url: https://panop.io/threat-heartbeat/CVE-2026-96265/
---

# CVE-2026-96265 IBM Power Systems Firmware - Broken Access Control

IBM Power Systems Firmware FW1060.00 through FW1060.81 contains a broken access control vulnerability caused by improper validation in the service processor mailbox interface, letting authenticated service-level attackers read or modify Hostboot memory, exploit requires authenticated service-level access.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.17% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-96265)

## Details

Type

Broken Access Control

Impact

Information Disclosure, Data Tampering, Denial Of Service

CVSS vector

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

Published

12 October 2026

Updated

15 October 2026

Weakness

[CWE-119](https://cwe.mitre.org/data/definitions/119.html)

## Vendor fix

Update to a version later than FW1060.81 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-96265](https://nvd.nist.gov/vuln/detail/CVE-2026-96265)
- [https://www.ibm.com/support/pages/node/7290124](https://www.ibm.com/support/pages/node/7290124)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)