dbcve.org
Active Management Technology FirmwareOperating system · Intel

CVE-2020-0532

HIGH · 7.1 CVSS v3.1 Published 2020-06-15
Fix available
A fix is available. Upgrade to 11.8.77 / 11.12.77 or later.
See remediation →
76/100
Remediation priority · High
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Improper input validation in subsystem for Intel(R) AMT versions before 11.8.77, 11.12.77, 11.22.77 and 12.0.64 may allow an unauthenticated user to potentially enable denial of service or information disclosure via adjacent access.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Improper input validation in Intel AMT (Active Management Technology) subsystem allows an unauthenticated user with adjacent network access to potentially cause denial of service or obtain information disclosure. The vulnerability affects Intel AMT versions prior to 11.8.77, 11.12.77, 11.22.77, and 12.0.64.

MitigationUpdate Intel AMT firmware to version 11.8.77, 11.12.77, 11.22.77, 12.0.64 or later to remediate the input validation vulnerability. Apply network segmentation to limit adjacent access to AMT interfaces as an additional control.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Active Management Technology FirmwareOperating system
Affected:>= 11.0, < 11.8.77>= 11.10, < 11.12.77>= 11.20, < 11.22.77>= 12.0, < 12.0.64

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify Intel AMT is present and enabled
    On Linux, check for the Management Engine Interface device with 'ls /dev/mei*' or run 'dmidecode | grep -i active management' to look for AMT entries. On Windows, open Device Manager and look for 'Intel Management Engine Interface' under System devices, or use 'wmic /namespace:\\root\wmi PATH Intel_AMT_Instance' to query AMT status.
    Affected if Intel AMT hardware and driver are present on the system (if AMT is not present or disabled, the system is not affected by this firmware vulnerability).
  2. Retrieve the AMT firmware version
    On Linux, run 'sudo meirwinfo' (from intel-metool or similar package) or 'sudo intelamt version' to obtain the firmware version. On Windows, use Intel AMT SDK tools or query via WMI: 'wmic /namespace:\\root\wmi PATH Intel_AMT_Instance GET FWVersion'. Alternatively, access the AMT web interface via https://<hostname>:16992 and check the version in the firmware information page.
    Affected if The command successfully returns an AMT firmware version number; if version cannot be retrieved, AMT may not be provisioned or accessible.
  3. Compare the installed version to affected ranges
    Compare the obtained firmware version to these vulnerable ranges: (1) version 11.0 through 11.7.x (less than 11.8.77); (2) version 11.10 through 11.11.x (less than 11.12.77); (3) version 11.20 through 11.21.x (less than 11.22.77); (4) version 12.0 through 12.0.63 (less than 12.0.64). Example: if version is 11.8.50, it falls in the first vulnerable range.
    Affected if The installed version falls within any of these ranges: >= 11.0 and < 11.8.77, OR >= 11.10 and < 11.12.77, OR >= 11.20 and < 11.22.77, OR >= 12.0 and < 12.0.64.
  4. Confirm adjacent network accessibility to AMT
    Verify that the Intel AMT network interface (typically ports 16992/16993 for HTTP/HTTPS) is accessible from the network segment where the system resides. Check local network configuration, firewall rules, and VLAN placement to determine if an adjacent attacker could reach the AMT interface.
    Affected if AMT ports (16992-16994) are exposed to an untrusted or shared network segment without network segmentation or ACLs, which would allow the unauthenticated adjacent attacker condition described in the CVE.

The system is affected if Intel AMT firmware is enabled with a version that matches any of the vulnerable version ranges AND the AMT network interface is accessible to adjacent (local network) attackers.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 11.8.77 / 11.12.77 / 11.22.77 or later
Fixed in 11.8.7711.12.7711.22.77
Interim mitigation

Update Intel AMT firmware to version 11.8.77, 11.12.77, 11.22.77, 12.0.64 or later to remediate the input validation vulnerability. Apply network segmentation to limit adjacent access to AMT interfaces as an additional control.

Fix this in Active Management Technology Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-0532 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data