Existing UEFI setting restrictions for DCI (Direct Connect Interface) in 5th and 6th generation Intel Xeon Processor E3 Family, Intel Xeon S
Existing UEFI setting restrictions for DCI (Direct Connect Interface) in 5th and 6th generation Intel Xeon Processor E3 Family, Intel Xeon Scalable processors, and Intel Xeon Processor D Family allows a limited physical presence attacker to potentially access platform secrets via debug interfaces.
- Published
- Jul 10, 2018
- Updated
- Jun 16, 2026
- EPSS
- 0.4% · 29th percentile
- CWE
- CWE-200
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.6 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| intel | xeon e3 | cpe:2.3:h:intel:xeon_e3 |
| intel | xeon e3 1220 v5 | cpe:2.3:h:intel:xeon_e3_1220_v5 |
| intel | xeon e3 1220 v6 | cpe:2.3:h:intel:xeon_e3_1220_v6 |
| intel | xeon e3 1225 v5 | cpe:2.3:h:intel:xeon_e3_1225_v5 |
| intel | xeon e3 1225 v6 | cpe:2.3:h:intel:xeon_e3_1225_v6 |
| intel | xeon e3 1230 v5 | cpe:2.3:h:intel:xeon_e3_1230_v5 |
| intel | xeon e3 1230 v6 | cpe:2.3:h:intel:xeon_e3_1230_v6 |
| intel | xeon e3 1235l v5 | cpe:2.3:h:intel:xeon_e3_1235l_v5 |
| intel | xeon e3 1240 v5 | cpe:2.3:h:intel:xeon_e3_1240_v5 |
| intel | xeon e3 1240 v6 | cpe:2.3:h:intel:xeon_e3_1240_v6 |
| intel | xeon e3 1240l v5 | cpe:2.3:h:intel:xeon_e3_1240l_v5 |
| intel | xeon e3 1245 v5 | cpe:2.3:h:intel:xeon_e3_1245_v5 |
and 22 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- intel atom cc2308
- intel atom cc2316
- intel atom cc2338
- intel atom cc2350
- intel atom cc2358
- intel atom cc2508
- intel atom cc2516
- intel atom cc2518
- intel atom cc2530
- intel atom cc2538
- intel atom cc2550
- intel atom cc2558
- intel atom cc2718
- intel atom cc2730
- intel atom cc2738
- intel atom cc2750
- intel atom cc2758
- intel atom cc3308
- intel atom cc3336
- intel atom cc3338
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.
Intel Corporation Intel Xeon Processor
- 5th and 6th generation Intel Xeon Processor E3 Family, Intel Xeon Scalable processors, and Intel Xeon Processor D Familyaffected
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
- Physical access to the device is required.
- No account or password is 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
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Physical
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-200 · Exposure of Sensitive Information to an Unauthorized ActorCVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
nvd-primary
Root cause
The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.
The bug in code
The whole CWE-200 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
{ "permissions": ["tabs", "<all_urls>"], "background": { "service_worker": "analytics.js" }}Fixed
{ "permissions": ["activeTab"], "host_permissions": ["https://yildiz.example/*"]}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)
- ExcavationCAPEC-116likelihood: High · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- FootprintingCAPEC-169likelihood: High · Very Low
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- FingerprintingCAPEC-224likelihood: High · Very Low
- ICMP Echo Request PingCAPEC-285likelihood: Medium · Low
- TCP SYN ScanCAPEC-287Low
- Enumerate Mail Exchange (MX) RecordsCAPEC-290Low
ATT&CK techniques
- System Service DiscoveryT1007
- System Network Configuration DiscoveryT1016
- Remote System DiscoveryT1018
- System Owner/User DiscoveryT1033
- Masquerading: Match Legitimate Name or LocationT1036.005
- Network Service ScanningT1046
- System Network Connections DiscoveryT1049
- Process DiscoveryT1057
- Permission Groups DiscoveryT1069
- System Information DiscoveryT1082
- File and Directory DiscoveryT1083
- Account DiscoveryT1087
- Multi-Factor Authentication InterceptionT1111
- Peripheral Device DiscoveryT1120
- System Time DiscoveryT1124
- Access Token Manipulation:Token Impersonation/TheftT1134.001
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-20180802-0001/
- www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00127.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.