CVE-2023-53937Public exploit

Local code execution via wow64log DLL planting

Published Dec 18, 2025 · Updated Dec 18, 2025

DLL search-order hijacking in Hubstaff 1.6.13 and 1.6.14 allows local users to execute code by planting wow64log.dll. The Windows setup executable requests a missing wow64log.dll from System32 and loads an attacker-supplied library placed there. Exploitation requires local access and permission to write the library into System32; launching the executable runs its payload in the application process.

CVSS severity8.5
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL search-order hijacking in Hubstaff 1.6.13 and 1.6.14 allows local users to execute code by planting wow64log.dll. The Windows setup executable requests a missing wow64log.dll from System32 and loads an attacker-supplied library placed there. Exploitation requires local access and permission to write the library into System32; launching the executable runs its payload in the application process.

The record

CVE
CVE-2023-53937
Published
Dec 18, 2025
Updated
Dec 18, 2025
Vendor
Hubstaff
Product
Hubstaff
Classifications
CWE-427, T1574.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 18, 2025Record 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=1.6.13, 1.6.14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Hubstaff · Hubstaffversion=1.6.13, 1.6.14

Published CVSS scores

8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8VulnCheckCVSS: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.

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 exploitPublished

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.001Hijack Execution Flow: DLL Search Order Hijacking

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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