CVE-2018-3655

A vulnerability in a subsystem in Intel CSME before version 11.21.55, Intel Server Platform Services before version 4.0 and Intel Trusted Execution Engine Firmware before version 3.1.55 may allow an unauthenticated user to potentially modify or disclose information via physical access.

Published: 2018-09-12 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-3655 is rated Moderate Risk (41.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.43%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-3655

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 0.43% +0.26%
2 2025-11-21 0.06% 0.17% +0.12%
3 2025-11-18 — 0.06% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-3655

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.3 3.0 HIGH
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 0.9 5.8 [email protected]
3.6 2.0 LOW
AV:L/AC:L/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.9 4.9 [email protected]

Weakness enumeration for CVE-2018-3655

Affected software / configurations for CVE-2018-3655

Vendor Product Version Raw CPE
intel converged_security_management_engine_firmware >= 11.0, <= 11.8.50 cpe:2.3:o:intel:converged_security_management_engine_firmware:*:*:*:*:*:*:*:*
intel converged_security_management_engine_firmware >= 11.10, <= 11.11.50 cpe:2.3:o:intel:converged_security_management_engine_firmware:*:*:*:*:*:*:*:*
intel converged_security_management_engine_firmware >= 11.20, <= 11.21.51 cpe:2.3:o:intel:converged_security_management_engine_firmware:*:*:*:*:*:*:*:*
intel server_platform_services_firmware < 4.0 cpe:2.3:o:intel:server_platform_services_firmware:*:*:*:*:*:*:*:*
intel trusted_execution_engine_firmware >= 3.0, <= 3.1.50 cpe:2.3:o:intel:trusted_execution_engine_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-3655

cvelogic Threat Intelligence