CVE-2020-0525Network attack vector

Privileged service interruption via undisclosed access control

Published Feb 17, 2021 · Updated Aug 4, 2024

Improper access control in Intel Ethernet Controller I210 firmware before 3.30 allows local users with privileged access to interrupt service. Intel has not published the affected firmware interface or the access-control operation that fails. Exploitation requires privileged access and can interrupt adapter service; no confidentiality impact is reported.

CVSS severity3.8
Low
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Intel Ethernet Controller I210 firmware before 3.30 allows local users with privileged access to interrupt service. Intel has not published the affected firmware interface or the access-control operation that fails. Exploitation requires privileged access and can interrupt adapter service; no confidentiality impact is reported.

The record

CVE
CVE-2020-0525
Published
Feb 17, 2021
Updated
Aug 4, 2024
Vendor
Intel Corporation
Product
Intel Ethernet Controller I210 Series
Classifications
Unavailable
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 17, 2021CVE 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version 3.30

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Intel Corporation · Intel Ethernet Controller I210 Seriesversion=before version 3.30

Published CVSS scores

3.8Intel CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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