CVE-2025-20074

Local privilege escalation via installer TOCTOU race

Published Aug 12, 2025 · Updated Feb 26, 2026

A TOCTOU race in Intel Connectivity Performance Suite installers before 40.24.11210 allows local users to escalate privileges. Intel identifies the affected locus only as some software installers and does not disclose which checked resource is changed or how the race is won. A low-privileged authenticated local account and a successful race are required; exploitation grants elevated control over the affected system.

CVSS severity7.8
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A TOCTOU race in Intel Connectivity Performance Suite installers before 40.24.11210 allows local users to escalate privileges. Intel identifies the affected locus only as some software installers and does not disclose which checked resource is changed or how the race is won. A low-privileged authenticated local account and a successful race are required; exploitation grants elevated control over the affected system.

The record

CVE
CVE-2025-20074
Published
Aug 12, 2025
Updated
Feb 26, 2026
Vendor
Intel Corporation
Product
Intel Connectivity Performance Suite
Classifications
CWE-367, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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?

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

  1. Affected versionversion=before version 40.24.11210

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel Connectivity Performance Suiteversion=before version 40.24.11210

Published CVSS scores

7.8Intel CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3Intel CorporationCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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.

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

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-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1068Exploitation for Privilege Escalation

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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