CVE-2023-38041

Local privilege escalation via TOCTOU race

Published Oct 25, 2023 · Updated Mar 7, 2025

A TOCTOU race in Ivanti Secure Access Client before 22.6R1 allows local users to gain elevated privileges on Windows endpoints. A particular client process flow checks a resource and later uses it after its state can change, but Ivanti has not identified the resource or responsible component. A logged-in, low-privileged user must win the race, after which the user gains unauthorized elevated privileges on the affected endpoint.

CVSS severity7.0
High
EPSS probability0.67%
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 Ivanti Secure Access Client before 22.6R1 allows local users to gain elevated privileges on Windows endpoints. A particular client process flow checks a resource and later uses it after its state can change, but Ivanti has not identified the resource or responsible component. A logged-in, low-privileged user must win the race, after which the user gains unauthorized elevated privileges on the affected endpoint.

The record

CVE
CVE-2023-38041
Published
Oct 25, 2023
Updated
Mar 7, 2025
Vendor
Ivanti
Product
Ivanti Secure Access Client
Classifications
CWE-367, CAPEC-29, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=22.6R1 <22.6R1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Ivanti · Ivanti Secure Access Clientversion=22.6R1 <22.6R1

Published CVSS scores

7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8HackerOne CNACVSS:3.0/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.

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
CAPEC-29Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
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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