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CVE-2023-28056

19
FAUCET Score

CVE-2023-28056 is an improper input validation vulnerability affecting Dell BIOS. A local, authenticated attacker with administrator privileges could exploit this to modify a UEFI variable, potentially leading to high impact on confidentiality, integrity, and availability. With a CVSS score of 6.7 (MEDIUM), this vulnerability requires high privileges and local access, making it less easily exploitable. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.26.0CPE matchmatch criteria
cpe:2.3:o:dell:alienware_area_51m_r1_firmware:*:*:*:*:*:*:*:*
< 1.22.0CPE matchmatch criteria
cpe:2.3:o:dell:alienware_area_51m_r2_firmware:*:*:*:*:*:*:*:*
< 1.0.20CPE matchmatch criteria
cpe:2.3:o:dell:alienware_aurora_r11_firmware:*:*:*:*:*:*:*:*
< 1.1.20CPE matchmatch criteria
cpe:2.3:o:dell:alienware_aurora_r12_firmware:*:*:*:*:*:*:*:*
< 1.12.0CPE matchmatch criteria
cpe:2.3:o:dell:alienware_aurora_r13_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.1MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
0.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0017 is in the 42nd percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

dell.com / support/kbdoc/en-us/000212204/dsa-2023-099-dell-client-bios-security-update-for-multiple-improper-input-validation-vulnerabilities
Vendor Advisory