How severe is CVE-2018-3616?

CVE-2018-3616 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-3616 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3616?

CVE-2018-3616 primarily affects Intel Converged Security Management Engine Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-3616 published?

CVE-2018-3616 was published on 2018-09-12 and last updated on 2026-06-17.

CVE-2018-3616

CVE-2018-3616 is a medium-severity vulnerability in Intel Converged Security Management Engine Firmware with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 2% (82nd 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

Bleichenbacher-style side channel vulnerability in TLS implementation in Intel Active Management Technology before 12.0.5 may allow an unauthenticated user to potentially obtain the TLS session key via the network.

Frequently asked questions

What is CVE-2018-3616?: Bleichenbacher-style side channel vulnerability in TLS implementation in Intel Active Management Technology before 12.0.5 may allow an unauthenticated user to potentially obtain the TLS session key via the network.
How severe is CVE-2018-3616?: CVE-2018-3616 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-3616 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3616?: CVE-2018-3616 primarily affects Intel Converged Security Management Engine Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-3616 published?: CVE-2018-3616 was published on 2018-09-12 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:intel:converged_security_management_engine_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:active_management_technology_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:manageability_engine_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc547e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pc547g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc627d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc647d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc677d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc827d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_ipc847d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:*

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