CVE-2020-8744· NVD / CVE Program· CNA intel

Improper initialization in subsystem for Intel(R) CSME versions before12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions

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: 0.36% (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.

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

Improper initialization in subsystem for Intel(R) CSME versions before12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions before 4.0.30 Intel(R) SPS versions before E3_05.01.04.200 may allow a privileged user to potentially enable escalation of privilege via local access.

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

Local privilege escalation

BDU:2020-05412

Published: Nov 12, 2020
Updated: Jun 16, 2026
EPSS: 0.4% · 28th percentile
CWE: CWE-665

Report tools

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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 · 0.4%

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

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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
intel	converged security and management engine	cpe:2.3:a:intel:converged_security_and_management_engine
intel	server platform services	cpe:2.3:a:intel:server_platform_services
intel	trusted execution engine	cpe:2.3:o:intel:trusted_execution_engine
siemens	simatic s7-1518-4 pn\/dp mfp firmware	cpe:2.3:o:siemens:simatic_s7-1518-4_pn\/dp_mfp_firmware
siemens	simatic s7-1518-4 pn\/dp mfp	cpe:2.3:h:siemens:simatic_s7-1518-4_pn\/dp_mfp
siemens	simatic s7-1518f-4 pn\/dp mfp firmware	cpe:2.3:o:siemens:simatic_s7-1518f-4_pn\/dp_mfp_firmware
siemens	simatic s7-1518f-4 pn\/dp mfp	cpe:2.3:h:siemens:simatic_s7-1518f-4_pn\/dp_mfp
siemens	simatic s7-1500 firmware	cpe:2.3:o:siemens:simatic_s7-1500_firmware
siemens	simatic s7-1500	cpe:2.3:h:siemens:simatic_s7-1500

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

intel converged security and management enginebefore 12.0.70
intel converged security and management engine13.0.0 and later · before 13.0.40
intel converged security and management engine13.30.0 and later · before 13.30.10
intel converged security and management engine14.0.0 and later · before 14.0.45
intel converged security and management engine14.5.0 and later · before 14.5.25
intel server platform servicesbefore e3_05.01.04.200
intel trusted execution enginebefore 4.0.30
siemens simatic s7-1500 firmwareall versions
siemens simatic s7-1518-4 pn/dp mfp firmwareall versions
siemens simatic s7-1518f-4 pn/dp mfp 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) CSME versions, Intel(R) TXE, Intel(R) SPS
- Intel(R) CSME versions before 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions before 4.0.30 Intel(R) SPS versions before E3_05.01.04.200affected

Same product

intel: all records

Other highest-scoring records for the same primary product.

CVE-2019-0091Code injection vulnerability in installer for Intel(R) CSME before versions 11.8.65, 11.11.65, 11.22.65, 12.0.35 and Intel(R) TXE 3.1.65, 4.
31Monitor
CVE-2019-0090Insufficient access control vulnerability in subsystem for Intel(R) CSME before versions 11.x, 12.0.35 Intel(R) TXE 3.x, 4.x, Intel(R) Serve
28Monitor
CVE-2020-8755Race condition in subsystem for Intel(R) CSME versions before 12.0.70 and 14.0.45, Intel(R) SPS versions before E5_04.01.04.400 and E3_05.01
25Monitor
CVE-2019-0093Insufficient data sanitization vulnerability in HECI subsystem for Intel(R) CSME before versions 11.8.65, 11.11.65, 11.22.65, 12.0.35 and In
17Monitor

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.

EPSS, last 120 days

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 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.

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.

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Bug bounty scope

Intel® Vulnerability Disclosure Program Intigriti · disclosure only (VDP)

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.
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-665 · Improper Initialization

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/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)

ATT&CK techniques

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

cert-portal.siemens.com/productcert/pdf/ssa-501073.pdf

Show all references (4 more)

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

All records