{"id":"CVE-2023-28063","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-28063","generatedAt":"2026-10-28T00:51:20.891Z","title":"Dell BIOS contains a Signed to Unsigned Conversion Error vulnerability.","description":"\nDell 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.\n\n","published":"2024-02-06T08:15:47.000Z","lastModified":"2026-06-17T05:46:46.000Z","status":"Modified","sourceIdentifier":"security_alert@emc.com","cvss":{"version":"3.1","score":4.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"},"cwe":["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","dell/optiplex xe4 oemready firmware","dell/precision 3260 xe compact firmware","dell/precision 3260 compact firmware","dell/precision 3460 xe small form factor firmware","dell/precision 3460 small form factor firmware","dell/alienware m15 r6 firmware","dell/alienware m15 r7 firmware","dell/chengming 3901 firmware","dell/chengming 3900 firmware","dell/chengming 3911 firmware","dell/chengming 3910 firmware","dell/chengming 3990 firmware","dell/chengming 3991 firmware","dell/g15 5510 firmware","dell/g15 5511 firmware","dell/g15 5520 firmware","dell/g3 3500 firmware","dell/g5 15 5590 firmware","dell/g5 5000 firmware","dell/g7 15 7500 firmware","dell/g7 15 7590 firmware","dell/g7 17 7700 firmware","dell/g7 17 7790 firmware","dell/inspiron 13 5320 firmware","dell/inspiron 14 5418 firmware","dell/inspiron 14 5410 firmware","dell/inspiron 14 5420 firmware","dell/inspiron 14 7420 2-in-1 firmware","dell/inspiron 14 plus 7420 firmware","dell/inspiron 15 3511 firmware","dell/inspiron 15 5510 firmware","dell/inspiron 15 5518 firmware","dell/inspiron 16 7620 2-in-1 firmware","dell/inspiron 16 plus 7620 firmware","dell/inspiron 24 5410 all-in-one firmware","dell/inspiron 24 5411 all-in-one firmware","dell/inspiron 27 7710 all-in-one firmware","dell/inspiron 3020 small desktop firmware","dell/inspiron 3020 desktop firmware","dell/inspiron 3490 firmware"],"epss":{"score":0.00158,"percentile":0.04953,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.dell.com/support/kbdoc/en-us/000214780/dsa-2023-176-dell-client-bios-security-update-for-a-signed-to-unsigned-conversion-error-vulnerability","tags":["Vendor Advisory"],"source":"security_alert@emc.com"},{"url":"https://www.dell.com/support/kbdoc/en-us/000214780/dsa-2023-176-dell-client-bios-security-update-for-a-signed-to-unsigned-conversion-error-vulnerability","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-28063","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}