CVE-2022-34100

SYSTEM privilege escalation via repair-time binary hijack

Published Sep 13, 2022 · Updated Aug 3, 2024

Privilege escalation in Crestron AirMedia Windows Application 4.3.1.39 allows local users to obtain a SYSTEM command prompt. During repair, a low-privileged user can change permissions on a pre-staged file structure before the installer places a trusted service executable, enabling binary replacement. A low-privileged local account and an installer repair operation are required; successful replacement executes with SYSTEM privileges.

CVSS severity8.8
High
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Crestron AirMedia Windows Application 4.3.1.39 allows local users to obtain a SYSTEM command prompt. During repair, a low-privileged user can change permissions on a pre-staged file structure before the installer places a trusted service executable, enabling binary replacement. A low-privileged local account and an installer repair operation are required; successful replacement executes with SYSTEM privileges.

The record

CVE
CVE-2022-34100
Published
Sep 13, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1574.005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/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

T1574.005Executable Installer File Permissions Weakness

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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