Improper input validation in BIOS firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege
Improper input validation in BIOS firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege via local access.
- Published
- Aug 10, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 6th percentile
- CWE
- CWE-20
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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 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 6.7
- CNA · intel
- 7.5
- 0.8 point gap
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| intel | nuc 11 pro kit nuc11tnhi70z firmware | cpe:2.3:o:intel:nuc_11_pro_kit_nuc11tnhi70z_firmware |
| intel | nuc 11 pro kit nuc11tnhi70z | cpe:2.3:h:intel:nuc_11_pro_kit_nuc11tnhi70z |
| intel | nuc 11 pro kit nuc11tnki70z firmware | cpe:2.3:o:intel:nuc_11_pro_kit_nuc11tnki70z_firmware |
| intel | nuc 11 pro kit nuc11tnki70z | cpe:2.3:h:intel:nuc_11_pro_kit_nuc11tnki70z |
| intel | nuc 11 pro kit nuc11tnki30z firmware | cpe:2.3:o:intel:nuc_11_pro_kit_nuc11tnki30z_firmware |
| intel | nuc 11 pro kit nuc11tnki30z | cpe:2.3:h:intel:nuc_11_pro_kit_nuc11tnki30z |
| intel | nuc 11 pro kit nuc11tnhi30z firmware | cpe:2.3:o:intel:nuc_11_pro_kit_nuc11tnhi30z_firmware |
| intel | nuc 11 pro kit nuc11tnhi30z | cpe:2.3:h:intel:nuc_11_pro_kit_nuc11tnhi30z |
| intel | nuc 11 pro kit nuc11tnki50z firmware | cpe:2.3:o:intel:nuc_11_pro_kit_nuc11tnki50z_firmware |
| intel | nuc 11 pro kit nuc11tnki50z | cpe:2.3:h:intel:nuc_11_pro_kit_nuc11tnki50z |
| intel | nuc 11 pro kit nuc11tnhi50z firmware | cpe:2.3:o:intel:nuc_11_pro_kit_nuc11tnhi50z_firmware |
| intel | nuc 11 pro kit nuc11tnhi50z | cpe:2.3:h:intel:nuc_11_pro_kit_nuc11tnhi50z |
and 36 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- intel nuc 11 pro board nuc11tnbi3 firmwareall versions
- intel nuc 11 pro board nuc11tnbi30z firmwareall versions
- intel nuc 11 pro board nuc11tnbi5 firmwareall versions
- intel nuc 11 pro board nuc11tnbi50z firmwareall versions
- intel nuc 11 pro board nuc11tnbi7 firmwareall versions
- intel nuc 11 pro board nuc11tnbi70z firmwareall versions
- intel nuc 11 pro kit nuc11tnhi3 firmwareall versions
- intel nuc 11 pro kit nuc11tnhi30l firmwareall versions
- intel nuc 11 pro kit nuc11tnhi30p firmwareall versions
- intel nuc 11 pro kit nuc11tnhi30z firmwareall versions
- intel nuc 11 pro kit nuc11tnhi5 firmwareall versions
- intel nuc 11 pro kit nuc11tnhi50l firmwareall versions
- intel nuc 11 pro kit nuc11tnhi50w firmwareall versions
- intel nuc 11 pro kit nuc11tnhi50z firmwareall versions
- intel nuc 11 pro kit nuc11tnhi7 firmwareall versions
- intel nuc 11 pro kit nuc11tnhi70l firmwareall versions
- intel nuc 11 pro kit nuc11tnhi70q firmwareall versions
- intel nuc 11 pro kit nuc11tnhi70z firmwareall versions
- intel nuc 11 pro kit nuc11tnki3 firmwareall versions
- intel nuc 11 pro kit nuc11tnki30z firmwareall 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) NUCs
- See referencesaffected
Same product
intel: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-37334Improper initialization in BIOS firmware for some Intel(R) NUC 11 Pro Kits and Intel(R) NUC 11 Pro Boards before version TNTGL357.0064 may a31Monitor
- CVE-2023-27887Improper initialization in BIOS firmware for some Intel(R) NUCs may allow a privileged user to potentially enable information disclosure via17Monitor
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-20 · Improper Input ValidationCVSS 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.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
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.