NVD / CVE Program· CNA dell

CVE-2022-26858: Dell BIOS versions contain an Improper Authentication vulnerability.

Noroxi assessment

Priority: Monitor (action score 31/100)

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: 0.17% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

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 versions contain an Improper Authentication vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls.

HighCVSS 7.8 · v3.1—No exploit No fix recorded

Auth bypass

Published: Sep 6, 2022
Updated: Jun 17, 2026
EPSS: 0.1% · 6th percentile
CWE: CWE-287

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.8
CNA · dell: 6.1; 1.7 point gap

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

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	alienware m15 r6 firmware	cpe:2.3:o:dell:alienware_m15_r6_firmware
dell	alienware m15 r6	cpe:2.3:h:dell:alienware_m15_r6
dell	chengming 3980 firmware	cpe:2.3:o:dell:chengming_3980_firmware
dell	chengming 3980	cpe:2.3:h:dell:chengming_3980
dell	chengming 3988 firmware	cpe:2.3:o:dell:chengming_3988_firmware
dell	chengming 3988	cpe:2.3:h:dell:chengming_3988
dell	chengming 3990 firmware	cpe:2.3:o:dell:chengming_3990_firmware
dell	chengming 3990	cpe:2.3:h:dell:chengming_3990
dell	chengming 3991 firmware	cpe:2.3:o:dell:chengming_3991_firmware
dell	chengming 3991	cpe:2.3:h:dell:chengming_3991
dell	g15 5510 firmware	cpe:2.3:o:dell:g15_5510_firmware
dell	g15 5510	cpe:2.3:h:dell:g15_5510

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 r6 firmwarebefore 1.8.0
dell chengming 3980 firmwarebefore 2.21.0
dell chengming 3988 firmwarebefore 1.9.0
dell chengming 3990 firmwarebefore 1.8.2
dell chengming 3991 firmwarebefore 1.8.2
dell edge gateway 3000 firmwarebefore 1.8.0
dell edge gateway 5000 firmwarebefore 1.18.0
dell embedded box pc 3000 firmwarebefore 1.14.0
dell embedded box pc 5000 firmwarebefore 1.15.0
dell g15 5510 firmwarebefore 1.8.0
dell g15 5511 firmwarebefore 1.9.0
dell g3 15 3590 firmwarebefore 1.16.0
dell g3 3500 firmwarebefore 1.12.0
dell g3 3579 firmwarebefore 1.19.0
dell g5 15 5587 firmwarebefore 1.19.0
dell g5 15 5590 firmwarebefore 1.18.0
dell g5 5000 firmwarebefore 1.5.1
dell g5 5090 firmwarebefore 1.12.0
dell g5 5500 firmwarebefore 1.12.0
dell g7 17 7700 firmwarebefore 1.12.0

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
- unspecified and later · before Allaffected

Same product

dell: all records

Other highest-scoring records for the same primary product.

CVE-2022-34403 Dell BIOS contains a Stack based buffer overflow vulnerability.
35Monitor
CVE-2024-52541Dell Client Platform BIOS contains a Weak Authentication vulnerability.
32Monitor
CVE-2022-26861Dell BIOS versions contain an Insecure Automated Optimization vulnerability.
31Monitor

Published before and after this one in the same product

← EarlierCVE-2021-21573Jun 24, 2021 · Dell BIOSConnect feature contains a buffer overflow vulnerability.
30Monitor
← EarlierCVE-2021-21574Jun 24, 2021 · Dell BIOSConnect feature contains a buffer overflow vulnerability.
30Monitor
Later →CVE-2022-26859Sep 6, 2022 · Dell BIOS contains a race condition vulnerability.
28Monitor

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-2022-34403148 days apart Dell BIOS contains a Stack based buffer overflow vulnerability.
35Monitor
CVE-2022-268600 days apartDell BIOS versions contain a stack-based buffer overflow vulnerability.
31Monitor
CVE-2022-268610 days apartDell BIOS versions contain an Insecure Automated Optimization vulnerability.
31Monitor

Bug bounty scope

No known public program.

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

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-22-0599 · Sep 8, 2022(Dell Güvenlik Zafiyeti)

All national notices →

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

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

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

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/000202194

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

All records