CVE-2018-9085

4.9 MEDIUM 0.7% exploit odds Fix listed

What it is

A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data tampering.
Exploit odds: 0.7% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2018-11-16 14:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:06 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.7% in the next 30 days (EPSS).
Severity: 4.9 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2018-11-16 14:29 UTC
Last modified: 2026-06-17 02:06 UTC
Exploit probability: 0.7% · EPSS, next 30 days
Weakness: CWE-276 · Incorrect default permissions
Record status: Modified

Affected

Lenovo Flex System x240 m4 Firmware < a3e122b
Lenovo Flex System x440 m4 Firmware < cge122b
Lenovo System x3750 m4 Firmware < a5e124b
IBM Bladecenter hs23 Firmware < tke160c
IBM Bladecenter hs23e Firmware < ahe160c
IBM Flex System x220 m4 Firmware < kse158c
IBM Flex System x222 m4 Firmware < cce160c
IBM Flex System x240 m4 Firmware < ahe160c

Attack profile CVSS 3.0 · 4.9

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Raw vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

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-2018-9085.md and follow it. Check whether this project is affected by CVE-2018-9085. 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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Fix and advisories

References

NVD record · CVE.org record