CVE-2020-24453

Authenticated local privilege escalation

Published Feb 17, 2021 · Updated Aug 4, 2024

Improper input validation in Intel EPID SDK before 8 allows local users to escalate privileges through authenticated local access. Intel has not disclosed the affected SDK component, the rejected input property, or the operation that processes invalid input. Exploitation requires a low-privileged local account and can cross a security boundary to alter protected data; Intel reports no confidentiality or availability impact.

CVSS severity5.6
Medium
EPSS probability0.29%
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 EPID SDK before 8 allows local users to escalate privileges through authenticated local access. Intel has not disclosed the affected SDK component, the rejected input property, or the operation that processes invalid input. Exploitation requires a low-privileged local account and can cross a security boundary to alter protected data; Intel reports no confidentiality or availability impact.

The record

CVE
CVE-2020-24453
Published
Feb 17, 2021
Updated
Aug 4, 2024
Vendor
Intel Corporation
Product
Intel EPID SDK
Classifications
CWE-20, T1068
Attack vector
local
Privileges
authenticated

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 8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel EPID SDKversion=before version 8

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
5.6Intel CorporationCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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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