How severe is CVE-2020-8674?

CVE-2020-8674 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-8674 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8674?

CVE-2020-8674 primarily affects Intel Active Management Technology Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-8674?

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

When was CVE-2020-8674 published?

CVE-2020-8674 was published on 2020-06-15 and last updated on 2026-06-17.

CVE-2020-8674

CVE-2020-8674 is a medium-severity vulnerability in Intel Active Management Technology Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Intel Active Management Technology Firmware
Published: 2020-06-15
Last modified: 2026-06-17

Description

Out-of-bounds read in DHCPv6 subsystem in Intel(R) AMT and Intel(R)ISM versions before 11.8.77, 11.12.77, 11.22.77, 12.0.64 and 14.0.33 may allow an unauthenticated user to potentially enable information disclosure via network access.

Frequently asked questions

What is CVE-2020-8674?: Out-of-bounds read in DHCPv6 subsystem in Intel(R) AMT and Intel(R)ISM versions before 11.8.77, 11.12.77, 11.22.77, 12.0.64 and 14.0.33 may allow an unauthenticated user to potentially enable information disclosure via network access.
How severe is CVE-2020-8674?: CVE-2020-8674 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-8674 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8674?: CVE-2020-8674 primarily affects Intel Active Management Technology Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-8674?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-8674 published?: CVE-2020-8674 was published on 2020-06-15 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:intel:active_management_technology_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:intel:service_manager:*:*:*:*:*:*:*:*

More vulnerabilities in Intel Active Management Technology Firmware

CVE-2022-30601 — Critical (CVSS 9.8): Insufficiently protected credentials for Intel(R) AMT and Intel(R) Standard Manageability may allow an unauthenticated…
CVE-2020-8752 — Critical (CVSS 9.8): Out-of-bounds write in IPv6 subsystem for Intel(R) AMT, Intel(R) ISM versions before 11.8.80, 11.12.80, 11.22.80,…
CVE-2020-8758 — Critical (CVSS 9.8): Improper buffer restrictions in network subsystem in provisioned Intel(R) AMT and Intel(R) ISM versions before 11.8.79,…
CVE-2020-0595 — Critical (CVSS 9.8): Use after free in IPv6 subsystem in Intel(R) AMT and Intel(R) ISM versions before 11.8.77, 11.12.77, 11.22.77 and…
CVE-2020-0594 — Critical (CVSS 9.8): Out-of-bounds read in IPv6 subsystem in Intel(R) AMT and Intel(R) ISM versions before 11.8.77, 11.12.77, 11.22.77 and…
CVE-2019-11131 — Critical (CVSS 9.8): Logic issue in subsystem in Intel(R) AMT before versions 11.8.70, 11.11.70, 11.22.70 and 12.0.45 may allow an…

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