CVE-2020-24498

Privileged local denial of service via firmware overflow

Published Feb 17, 2021 · Updated Aug 4, 2024

Buffer overflow in Intel Ethernet Controller E810 firmware before 1.4.1.13 allows privileged local users to interrupt service. Intel identifies the affected locus only as the controller firmware and has not disclosed which input reaches the overflowing buffer or which copy operation lacks a size check. Exploitation requires privileged local access; published impact is limited to denial of service, with no described data exposure or code execution.

CVSS severity6.0
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Intel Ethernet Controller E810 firmware before 1.4.1.13 allows privileged local users to interrupt service. Intel identifies the affected locus only as the controller firmware and has not disclosed which input reaches the overflowing buffer or which copy operation lacks a size check. Exploitation requires privileged local access; published impact is limited to denial of service, with no described data exposure or code execution.

The record

CVE
CVE-2020-24498
Published
Feb 17, 2021
Updated
Aug 4, 2024
Vendor
Intel Corporation
Product
Intel Ethernet Controller E810
Classifications
CWE-120, T1499.004
Attack vector
local
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 1.4.1.13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Intel Corporation · Intel Ethernet Controller E810version=before version 1.4.1.13

Published CVSS scores

6.0Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:P

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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