Improper conditions check in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of priv
Improper conditions check in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
- Published
- Nov 12, 2020
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 26th percentile
- CWE
- CWE-754
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.7 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| intel | bios | cpe:2.3:o:intel:bios |
| intel | xeon bronze 3204 | cpe:2.3:h:intel:xeon_bronze_3204 |
| intel | xeon bronze 3206r | cpe:2.3:h:intel:xeon_bronze_3206r |
| intel | xeon gold 5215 | cpe:2.3:h:intel:xeon_gold_5215 |
| intel | xeon gold 5215l | cpe:2.3:h:intel:xeon_gold_5215l |
| intel | xeon gold 5217 | cpe:2.3:h:intel:xeon_gold_5217 |
| intel | xeon gold 5218 | cpe:2.3:h:intel:xeon_gold_5218 |
| intel | xeon gold 5218b | cpe:2.3:h:intel:xeon_gold_5218b |
| intel | xeon gold 5218n | cpe:2.3:h:intel:xeon_gold_5218n |
| intel | xeon gold 5218r | cpe:2.3:h:intel:xeon_gold_5218r |
| intel | xeon gold 5218t | cpe:2.3:h:intel:xeon_gold_5218t |
| intel | xeon gold 5220 | cpe:2.3:h:intel:xeon_gold_5220 |
and 102 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- intel biosall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (intel). Independent of NVD's CPE analysis and usually ahead of it.
n/a Intel(R) Processors
- See referencesaffected
Same product
intel: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-14557Buffer overflow in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processor32Monitor
- CVE-2020-12360Out of bounds read in the firmware for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privileg31Monitor
- CVE-2020-8672Out of bound read in BIOS firmware for 8th, 9th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 Series Processors may allow31Monitor
- CVE-2020-8739Use of potentially dangerous function in Intel BIOS platform sample code for some Intel(R) Processors may allow an authenticated user to pot31Monitor
- CVE-2018-3612Intel NUC kits with insufficient input validation in system firmware, potentially allows a local attacker to elevate privileges to System Ma31Monitor
- CVE-2020-12359Insufficient control flow management in the firmware for some Intel(R) Processors may allow an unauthenticated user to potentially enable es27Monitor
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
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
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
- 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-754 · Improper Check for Unusual or Exceptional ConditionsCVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/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
- security.netapp.com/advisory/ntap-20201113-0001/
- www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00358
Vendor advisories and official records. Exploit/PoC links are deliberately left out.