NVD / CVE Program· CNA dell

CVE-2023-32453: Dell BIOS contains an improper authentication vulnerability.

Noroxi assessment

Priority: Monitor (action score 15/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
Physical access to the device is required. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

LowCVSS 3.9 · v3.1—No exploit No fix recorded

Auth bypass

Published: Aug 16, 2023
Updated: Jun 17, 2026
EPSS: 0.2% · 15th percentile
CWE: CWE-287

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 15 / 40 · 3.9 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 3.9
CNA · dell: 4.6; 0.7 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
dell	vostro 5491	cpe:2.3:h:dell:vostro_5491
dell	alienware m15 r7 firmware	cpe:2.3:o:dell:alienware_m15_r7_firmware
dell	alienware m15 r7	cpe:2.3:h:dell:alienware_m15_r7
dell	alienware m16 firmware	cpe:2.3:o:dell:alienware_m16_firmware
dell	alienware m16	cpe:2.3:h:dell:alienware_m16
dell	alienware m18 firmware	cpe:2.3:o:dell:alienware_m18_firmware
dell	alienware m18	cpe:2.3:h:dell:alienware_m18
dell	chengming 3900 firmware	cpe:2.3:o:dell:chengming_3900_firmware
dell	chengming 3900	cpe:2.3:h:dell:chengming_3900
dell	chengming 3901 firmware	cpe:2.3:o:dell:chengming_3901_firmware
dell	chengming 3901	cpe:2.3:h:dell:chengming_3901
dell	chengming 3910 firmware	cpe:2.3:o:dell:chengming_3910_firmware

and 188 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

dell alienware m15 r7 firmwarebefore 1.18.0
dell alienware m16 firmwarebefore 1.10.1
dell alienware m18 firmwarebefore 1.10.1
dell chengming 3900 firmwarebefore 1.15.0
dell chengming 3901 firmwarebefore 1.15.0
dell chengming 3910 firmwarebefore 1.6.0
dell chengming 3911 firmwarebefore 1.6.0
dell g15 5520 firmwarebefore 1.18.0
dell g16 7620 firmwarebefore 1.18.0
dell g3 3500 firmwarebefore 1.26.0
dell g5 15 5500 firmwarebefore 1.26.0
dell g7 15 7500 firmwarebefore 1.26.0
dell g7 17 7700 firmwarebefore 1.26.0
dell inspiron 14 5410 firmwarebefore 2.20.0
dell inspiron 14 5418 firmwarebefore 2.20.0
dell inspiron 15 3511 firmwarebefore 1.23.0
dell inspiron 15 5510 firmwarebefore 2.20.0
dell inspiron 15 5518 firmwarebefore 2.20.0
dell inspiron 24 5420 all-in-one firmwarebefore 1.4.0
dell inspiron 24 5421 all-in-one firmwarebefore 1.4.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (dell). Independent of NVD's CPE analysis and usually ahead of it.

Dell CPG BIOS
- All versionsaffected

Same product

dell: all records

Other highest-scoring records for the same primary product.

CVE-2023-32480 Dell BIOS contains an Improper Input Validation vulnerability.
27Monitor
CVE-2023-28075 Dell BIOS contain a Time-of-check Time-of-use vulnerability in BIOS.
25Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2023-280750 days apart Dell BIOS contain a Time-of-check Time-of-use vulnerability in BIOS.
25Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Physical access to the device is required.
Administrator privileges are required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: high · data or configuration can be modified
Availability: none

Attack vector: Physical
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: High
Availability impact: None

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

www.dell.com/support/kbdoc/en-us/000215217/dsa-2023-190-dell-client-bios

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records