CVE-2018-9069

BIOS Write Protection Race Condition

5.9 Medium

In some Lenovo IdeaPad consumer notebook models, a race condition in the BIOS flash device locking mechanism is not adequately protected against, potentially allowing an attacker with administrator access to alter the contents of BIOS.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: High

Exploit likelihood

0.53%Down 1.5 points since Apr 14, 2021

What each source reports

NVD Score used 5.9

Record: CVE-2018-9069
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0: 7.0 HighAV:N/AC:M/Au:S/C:N/I:P/A:C
Weakness: CWE-362
Updated: 2026-11-02

CVE List No score

BIOS Write Protection Race Condition

Record: CVE-2018-9069
Updated: 2026-11-02

EUVDEUVD-2018-20672 No score

Record: EUVD-2018-20672
Updated: 2026-11-03

GitHub AdvisoriesGHSA-p7mj-q6cv-6qw2 5.9

In some Lenovo IdeaPad consumer notebook models, a race condition in the BIOS flash device...

Record: GHSA-p7mj-q6cv-6qw2
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
Weakness: CWE-362
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-9069 is a medium vulnerability (CVSS 5.9) in Lenovo Group Ltd Ideapad, published October 2, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. No source names a fixed version.