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CVE-2023-32453

INDEX BUILT · 2026-10-18

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Dell BIOS contains an improper authentication vulnerability

CVE-2023-324534 of 4 sources documented this
25

rank 25 = 0 + 10 + 0 + 15 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00238  ·  without this subject the record ranks 25

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 3.9, from NVD  ·  without this subject the record ranks 15

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 25

How much of the world it touches

NVD CPE configurations

111 products in the CPE ranges  ·  without this subject the record ranks 10

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 25

Hindsight · the state

0.00238EPSSNOT IN KEVas of 2026-10-18
Severity4.6 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2023-08-18, 1095 days at 0.00, as of 2026-08-17. arc-rules@v1

Foresight · where to check next

CVE-2023-28461CVE-2019-0543SonicWall SonicOSConcurrentVMware ESXiFortinet FortiOS,32453

This record is one instance of CWE-287, improper authentication. The index holds 5177 prior instances of this class, 50 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Sources disagree here.

Severity score
Dell4.6 MEDIUMreceipt
NVD3.9 LOWreceipt
What it costs
DellComplete integrity loss; partial availability lossreceipt
NVDComplete integrity lossreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running Dell CPG BIOS? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Harm, if it fires from the vector and the weakness

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Reachneeds physical access · high privileges required · no user interaction · low attack complexityreceipt
ImpactComplete integrity loss; partial availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-287 Improper Authenticationreceipt
Published consequencesCWE-287: Integrity, Confidentiality, Availability, Access Control: Read Application Data, Gain Privileges or Assume Identity, Execute Unauthorized Code or Commandscwe-consequences@4.20

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchinspiron 1.15.0; inspiron 1.17.0; inspiron 1.19.0; inspiron 1.22.0; inspiron 1.23.0; inspiron 1.24.0receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
BOD 26-04 deadlineIf the system is reachable from the internet: 14 days. If not: fix at the next system upgrade.derived
Show full BOD 26-04 deadline

CISA has not scored it, so the directive's own defaults apply: automatable no, technical impact total. Calendar days from the KEV listing or from when you find it on a system, whichever is first. Federal agencies are bound from 7 Dec 2026, and contracts often carry it to suppliers. The directive and its table

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA4.6 MEDIUMreceipt
CVSS, NVD3.9 LOWreceipt
Exploit probability0.00238 · top 86% of all CVEsreceipt
Blast breadth20 products across 1 vendorderived
Assigned bydellreceipt
Recorded changes13 · last 18 Oct 2026derived

Affected & Fixed Versions as published

Affected productDell CPG BIOSreceipt
Published rangesdell alienware m15 r7 firmware < 1.18.0; dell alienware m16 firmware < 1.10.1; dell alienware m18 firmware < 1.10.1; dell chengming 3900 firmware < 1.15.0receipt
Show all 111 published ranges
dell alienware m15 r7 firmware < 1.18.0
dell alienware m16 firmware < 1.10.1
dell alienware m18 firmware < 1.10.1
dell chengming 3900 firmware < 1.15.0
dell chengming 3901 firmware < 1.15.0
dell chengming 3910 firmware < 1.6.0
dell chengming 3911 firmware < 1.6.0
dell g15 5520 firmware < 1.18.0
dell g16 7620 firmware < 1.18.0
dell g3 3500 firmware < 1.26.0
dell g5 15 5500 firmware < 1.26.0
dell g7 15 7500 firmware < 1.26.0
dell g7 17 7700 firmware < 1.26.0
dell precision 5680 firmware < 1.4.1
dell inspiron 14 5410 firmware < 2.20.0
dell inspiron 14 5418 firmware < 2.20.0
dell inspiron 15 3511 firmware < 1.23.0
dell inspiron 15 5510 firmware < 2.20.0
dell inspiron 15 5518 firmware < 2.20.0
dell inspiron 24 5420 all-in-one firmware < 1.4.0
dell inspiron 24 5421 all-in-one firmware < 1.4.0
dell inspiron 27 7720 all-in-one firmware < 1.4.0
dell inspiron 3020 small desktop firmware <= 1.6.0
dell inspiron 3020 desktop firmware < 1.6.0
dell inspiron 3493 firmware < 1.27.0
dell inspiron 3511 firmware < 1.23.0
dell inspiron 3593 firmware < 1.27.0
dell inspiron 3793 firmware < 1.27.0
dell inspiron 3891 firmware < 1.19.0
dell inspiron 3910 firmware < 1.15.0
dell inspiron 5410 firmware < 2.20.0
dell inspiron 5493 firmware < 1.27.0
dell inspiron 5593 firmware < 1.27.0
dell inspiron 7300 2-in-1 firmware < 1.19.0
dell inspiron 7490 firmware < 1.22.0
dell inspiron 7500 firmware < 1.24.0
dell inspiron 7500 2-in-1 black firmware < 1.19.0
dell inspiron 7501 firmware < 1.24.0
dell inspiron 7510 firmware < 1.17.0
dell inspiron 7610 firmware < 1.17.0
dell latitude 3140 firmware < 1.8.0
dell latitude 3301 firmware < 1.27.0
dell latitude 3320 firmware < 1.23.0
dell latitude 3330 firmware < 1.15.0
dell latitude 3340 firmware < 1.6.0
dell latitude 3400 firmware < 1.29.0
dell latitude 3430 firmware < 1.12.0
dell latitude 3440 firmware < 1.6.0
dell latitude 3500 firmware < 1.29.0
dell latitude 3530 firmware < 1.12.0
dell latitude 3540 firmware < 1.6.0
dell latitude 5420 firmware < 1.30.0
dell latitude 5430 firmware < 1.15.0
dell latitude 5431 firmware < 1.15.0
dell latitude 7230 rugged extreme tablet firmware < 1.8.0
dell latitude 7320 firmware < 1.28.0
dell latitude 7420 firmware < 1.28.0
dell latitude 7520 firmware < 1.28.0
dell latitude 9330 firmware < 1.13.0
dell latitude 9520 firmware < 1.24.0
dell latitude rugged 5430 firmware < 1.20.0
dell latitude rugged 7330 firmware < 1.20.0
dell optiplex 3000 firmware < 1.15.0
dell optiplex 3000 thin client firmware < 1.11.0
dell optiplex 5000 firmware < 1.15.0
dell optiplex 5090 firmware < 1.19.0
dell optiplex 5400 all-in-one firmware < 1.1.30
dell optiplex 5490 all-in-one firmware < 1.23.0
dell optiplex 7000 firmware < 1.15.0
dell optiplex 7090 firmware < 1.19.0
dell optiplex 7400 all-in-one firmware < 1.1.30
dell optiplex 7490 all-in-one firmware < 1.23.0
dell optiplex 7410 all-in-one firmware < 1.6.0
dell optiplex micro plus 7010 firmware < 1.6.0
dell optiplex small form factor plus 7010 firmware < 1.6.0
dell optiplex tower plus 7010 firmware < 1.6.0
dell optiplex xe4 firmware < 1.15.0
dell precision 3260 xe compact firmware < 2.7.0
dell precision 3260 compact firmware < 2.7.0
dell precision 3450 firmware < 1.19.0
dell precision 3460 xe small form factor firmware < 2.7.0
dell precision 3460 small form factor firmware < 2.7.0
dell precision 3470 firmware < 1.15.0
dell precision 3650 tower firmware < 1.24.0
dell precision 3660 firmware < 2.7.0
dell precision 5470 firmware < 1.15.0
dell precision 5570 firmware < 1.16.0
dell precision 5860 tower firmware < 1.0.10
dell precision 7960 tower firmware < 1.0.9
dell vostro 3020 sff firmware < 1.6.0
dell vostro 3020 t firmware < 1.6.0
dell vostro 3510 firmware < 1.23.0
dell vostro 3690 firmware < 1.19.0
dell vostro 3710 firmware < 1.15.0
dell vostro 3890 firmware < 1.19.0
dell vostro 3910 firmware < 1.15.0
dell vostro 5410 firmware < 2.20.0
dell vostro 5491 firmware < 1.27.0
dell vostro 5510 firmware < 2.20.0
dell vostro 5591 firmware < 1.27.0
dell vostro 5890 firmware < 1.19.0
dell vostro 7500 firmware < 1.24.0
dell vostro 7510 firmware < 1.17.0
dell xps 13 9305 firmware < 1.16.0
dell xps 13 7390 firmware < 1.21.0
dell xps 13 7390 2-in-1 firmware < 1.26.0
dell xps 13 9300 firmware < 1.19.0
dell xps 13 9310 firmware < 3.17.0
dell xps 13 9310 2-in-1 firmware < 2.19.0
dell xps 13 9315 firmware < 1.13.0
dell xps 15 9520 firmware < 1.16.0

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$8,530over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$8,530 = $4.99M incident cost x 0.7179585840212677 exposure x 0.00238 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

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Attack path

Physical accessrequires high privilegesDell CPG BIOSCWE-287 improper authenticationIntegrity lossI:Hexploits CWE-287data compromise

What it is stated by the CNA

Dell BIOS contains an improper authentication vulnerability. A malicious user with physical access to the system may potentially exploit this vulnerability in order to modify a security-critical UEFI variable without knowledge of the BIOS administrator. receipt

NVD's analysis a second authority

severity
3.9 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
weakness
CWE-287
affected versions
dell alienware m15 r7 firmware < 1.18.0; dell alienware m16 firmware < 1.10.1; dell alienware m18 firmware < 1.10.1; and 108 more, listed in full below
also scored by
security_alert@emc.com 4.6 CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L

The CNA scored it 4.6 and NVD 3.9. Both are shown because both were published; we do not pick one.

check it yourself dell.com receipt

Movement the material steps

18 Aug 20230.00043
17 Mar 20250.0005 · scoring model v2025.03.14
15 Jun 20260.00211 · scoring model v2026.06.15
17 Aug 20260.00238

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 13 observations
18 Aug 20230.00043
8 Mar 20250.00044
17 Mar 20250.0005
19 Mar 20250.00055
29 Mar 20250.00111
30 Mar 20250.00055
15 Apr 20250.0003
18 Nov 20250.00055
21 Nov 20250.0003
11 May 20260.00033
12 Jun 20260.00035
15 Jun 20260.00211
17 Aug 20260.00238

13 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00238Published2023-08-16Index as of2026-08-17

Exploit probability more than doubled between 2026-06-12 and 2026-06-15 (0.00035 → 0.00211) and the record had been public for 3 years when this index was last written.

Published 2023-08-16 receipt · Index as of 2026-08-17 derived

The pattern, elsewhere

This record is one instance of CWE-287, improper authentication. The index holds 5177 prior instances of this class, 50 KEV-listed. The nearest of its KEV-listed records are drawn beside this. cwe-consequences@4.20

CVE-2023-28461matches 4 of 8KEV listed · 2023receipt
CVE-2019-0543matches 4 of 8KEV listed · 2019receipt
CVE-2024-53704 · SonicWall SonicOSmatches 4 of 9KEV listed · 2025receipt
CVE-2025-61882 · Oracle Concurrent Processingmatches 4 of 9KEV listed · 2025receipt
CVE-2024-37085 · VMware ESXimatches 4 of 9KEV listed · 2024receipt
CVE-2022-40684 · Fortinet FortiOS, FortiProxy…matches 4 of 9KEV listed · 2022receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

5177 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

dell cpg bios

Of the 4 records in this family that state one, this holds the lowest NVD CVSS score: 3.9.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

These are index-wide views, not findings about CVE-2023-32453.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.