How severe is CVE-2020-0594?

CVE-2020-0594 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-0594 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-0594?

CVE-2020-0594 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-2020-0594?

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

When was CVE-2020-0594 published?

CVE-2020-0594 was published on 2020-06-15 and last updated on 2026-06-17.

CVE-2020-0594

CVE-2020-0594 is a critical-severity vulnerability in Intel Active Management Technology Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (88th 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 IPv6 subsystem in Intel(R) AMT and Intel(R) ISM versions before 11.8.77, 11.12.77, 11.22.77 and 12.0.64 may allow an unauthenticated user to potentially enable escalation of privilege via network access.

Frequently asked questions

What is CVE-2020-0594?: 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 12.0.64 may allow an unauthenticated user to potentially enable escalation of privilege via network access.
How severe is CVE-2020-0594?: CVE-2020-0594 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-0594 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-0594?: CVE-2020-0594 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-2020-0594?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-0594 published?: CVE-2020-0594 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-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…
CVE-2019-11107 — Critical (CVSS 9.8): Insufficient input validation in the subsystem for Intel(R) AMT before version 12.0.45 may allow an unauthenticated…

All CVEs affecting Intel Active Management Technology Firmware →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →