CVE-2022-27438Public exploitNetwork attack vector

Code execution via unsigned CustomDetection executable

Published Jun 6, 2022 · Updated Jul 9, 2026

Code execution in Caphyon Advanced Installer 19.3 and earlier allows man-in-the-middle attackers to run a local executable. The update check trusts attacker-supplied CustomDetection and CustomDetectionParameters values, then launches that local EXE without verifying its signer. Exploitation requires control of the update response, a pre-positioned executable, and a user to launch the updater; code runs with that user's privileges.

CVSS severity8.1
High
EPSS probability1.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in Caphyon Advanced Installer 19.3 and earlier allows man-in-the-middle attackers to run a local executable. The update check trusts attacker-supplied CustomDetection and CustomDetectionParameters values, then launches that local EXE without verifying its signer. Exploitation requires control of the update response, a pre-positioned executable, and a user to launch the updater; code runs with that user's privileges.

The record

CVE
CVE-2022-27438
Published
Jun 6, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-494, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.1NIST NVDAV:N/AC:H/Au:N/C:P/I:P/A:P
8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1203Exploitation for Client Execution

Public exploit references

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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