VulnerabilityModified

CVE-2023-28063

Dell BIOS contains a Signed to Unsigned Conversion Error vulnerability.

MEDIUM 4.4EPSS 0.16%

Does this matter?

Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.

Description

Dell BIOS contains a Signed to Unsigned Conversion Error vulnerability. A local authenticated malicious user with admin privileges could potentially exploit this vulnerability, leading to denial of service.

CVSS 3.1: 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.16% probability · 5th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-195, CWE-681
Affected: dell/optiplex 3000 micro firmware · dell/optiplex 3000 small form factor firmware · dell/optiplex 3000 tower firmware · dell/optiplex 5000 micro firmware · dell/optiplex 5000 small form factor firmware · dell/optiplex 5000 tower firmware · dell/optiplex 7000 micro firmware · dell/optiplex 7000 small form factor firmware · dell/optiplex 7000 tower firmware · dell/optiplex 7000 xe micro firmware · dell/optiplex 5090 micro firmware · dell/optiplex 5090 small form factor firmware · dell/optiplex 5090 tower firmware · dell/optiplex micro 7010 firmware · dell/optiplex micro plus 7010 firmware · dell/optiplex small form factor 7010 firmware · dell/optiplex small form factor plus 7010 firmware · dell/optiplex tower 7010 firmware · dell/optiplex tower plus 7010 firmware · dell/optiplex xe4 firmware · +40 more
Source: security_alert@emc.com

EPSS trend

EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.