CVE-2026-20715Network attack vector

Unauthenticated network service interruption

Published Aug 11, 2026 · Updated Aug 11, 2026

Improper input validation in Intel AMT and Standard Manageability firmware allows remote attackers to interrupt the service over a network. Intel identifies the affected locus only as firmware input handling and has not disclosed which input is accepted or how its validation fails. The attack requires no authentication or user interaction, but unspecified attack requirements must be present; the documented consequence is an availability-only interruption of unspecified form.

CVSS severity8.2
High
EPSS probability0.32%
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 Standard Manageability firmware allows remote attackers to interrupt the service over a network. Intel identifies the affected locus only as firmware input handling and has not disclosed which input is accepted or how its validation fails. The attack requires no authentication or user interaction, but unspecified attack requirements must be present; the documented consequence is an availability-only interruption of unspecified form.

The record

CVE
CVE-2026-20715
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record 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

8.2Intel CorporationCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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.

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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
T1499Endpoint Denial of Service

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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