The BIOS implementation on Dell Latitude, OptiPlex, Precision Mobile Workstation, and Precision Workstation Client Solutions (CS) devices wi
The BIOS implementation on Dell Latitude, OptiPlex, Precision Mobile Workstation, and Precision Workstation Client Solutions (CS) devices with model-dependent firmware before A21 does not enforce a BIOS_CNTL locking protection mechanism upon being woken from sleep, which allows local users to conduct EFI flash attacks by leveraging console access, a similar issue to CVE-2015-3692.
- Published
- Jul 31, 2015
- Updated
- Jun 16, 2026
- EPSS
- 1.1% · 65th percentile
- CWE
- —
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Report tools
Action score
24
Monitor
Low priority for now.
- CVSS
- 24 / 40 · 6.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.1%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| dell | bios | cpe:2.3:o:dell:bios |
| dell | latitude e6420 atg | cpe:2.3:h:dell:latitude_e6420_atg |
| dell | latitude e6420 xfr | cpe:2.3:h:dell:latitude_e6420_xfr |
| dell | latitude e6220 | cpe:2.3:h:dell:latitude_e6220 |
| dell | latitude xt3 | cpe:2.3:h:dell:latitude_xt3 |
| dell | latitude e4310 | cpe:2.3:h:dell:latitude_e4310 |
| dell | latitude e5410 | cpe:2.3:h:dell:latitude_e5410 |
| dell | latitude e5510 | cpe:2.3:h:dell:latitude_e5510 |
| dell | latitude e6410 atg | cpe:2.3:h:dell:latitude_e6410_atg |
| dell | latitude e6510 | cpe:2.3:h:dell:latitude_e6510 |
| dell | precision mobile m4600 | cpe:2.3:h:dell:precision_mobile_m4600 |
| dell | precision t1600 | cpe:2.3:h:dell:precision_t1600 |
and 12 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- dell biosup to a17 inclusive
- dell biosup to a12 inclusive
- dell biosup to a15 inclusive
- dell biosup to a18 inclusive
- dell biosup to a14 inclusive
- dell biosup to a20 inclusive
- dell biosup to a11 inclusive
- dell biosup to a10 inclusive
- dell biosa13
Same product
dell: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-32492Dell BIOS contains an improper input validation vulnerability.35Monitor
- CVE-2022-32486Dell BIOS contains an improper input validation vulnerability.35Monitor
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.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
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 researchersFinders, 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.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- 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
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.