CVE-2023-28056

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious...

5.1 Medium

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user with administrator privileges may potentially exploit this vulnerability in order to modify a UEFI variable.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: Low

Exploit likelihood

0.17%Up 0.1 points since Jun 24, 2023

What each source reports

CVE List Score used 5.1

Record: CVE-2023-28056
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
Weakness: CWE-20
Updated: 2026-11-02

EUVDEUVD-2023-31781 5.1

Record: EUVD-2023-31781
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4x47-m3gh-g332 5.1

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious...

Record: GHSA-4x47-m3gh-g332
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
Weakness: CWE-20
Updated: 2026-11-02

NVD 5.1

Record: CVE-2023-28056
CVSS 3.1: 5.1 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
CVSS 3.1: 6.7 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-20
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	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-2023-28056 is a medium vulnerability (CVSS 5.1) in Dell Alienware Area 51m R1 Firmware, published June 23, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.