How severe is CVE-2018-3655?

CVE-2018-3655 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2018-3655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3655?

CVE-2018-3655 primarily affects Intel Converged Security Management Engine Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3655?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-3655 published?

CVE-2018-3655 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2018-3655

CVE-2018-3655 is a high-severity vulnerability in Intel Converged Security Management Engine Firmware with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 3.6
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Intel Converged Security Management Engine Firmware
Published: 2018-09-12
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-3655?: CVE-2018-3655 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2018-3655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3655?: CVE-2018-3655 primarily affects Intel Converged Security Management Engine Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3655?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-3655 published?: CVE-2018-3655 was published on 2018-09-12 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:intel:converged_security_management_engine_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:server_platform_services_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:trusted_execution_engine_firmware:*:*:*:*:*:*:*:*

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