CVE-2020-0596Network attack vector

Unauthenticated information disclosure via malformed DHCPv6 input

Published Jun 15, 2020 · Updated Aug 4, 2024

Improper input validation in Intel AMT and ISM before 11.8.77, 11.12.77, 11.22.77, or 12.0.64 allows remote attackers to read data. Intel identifies the DHCPv6 subsystem as the locus but has not published which DHCPv6 field is accepted without validation or what data is returned. No authentication or user interaction is required; network access to an enabled management interface is enough to expose confidential data.

CVSS severity7.5
High
EPSS probability2.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Intel AMT and ISM before 11.8.77, 11.12.77, 11.22.77, or 12.0.64 allows remote attackers to read data. Intel identifies the DHCPv6 subsystem as the locus but has not published which DHCPv6 field is accepted without validation or what data is returned. No authentication or user interaction is required; network access to an enabled management interface is enough to expose confidential data.

The record

CVE
CVE-2020-0596
Published
Jun 15, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5IntelCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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