CVE-2024-31226

Local code execution via unquoted termination-helper path

Published May 16, 2024 · Updated Aug 15, 2024

Unquoted search path handling in LizardByte Sunshine 0.17.0 through 0.22.2 allows local users to execute code during Windows service shutdown. The service passes the unquoted GetModuleFileName() path as CreateProcessAsUser()'s lpCommandLine, causing Windows to search C:\Program.* before the intended helper. Exploitation requires manually loosened system-drive ACLs, local placement of a matching file, and service termination; the file runs under the termination helper's selected user token.

CVSS severity4.9
Medium
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

Unquoted search path handling in LizardByte Sunshine 0.17.0 through 0.22.2 allows local users to execute code during Windows service shutdown. The service passes the unquoted GetModuleFileName() path as CreateProcessAsUser()'s lpCommandLine, causing Windows to search C:\Program.* before the intended helper. Exploitation requires manually loosened system-drive ACLs, local placement of a matching file, and service termination; the file runs under the termination helper's selected user token.

The record

CVE
CVE-2024-31226
Published
May 16, 2024
Updated
Aug 15, 2024
Vendor
LizardByte
Product
Sunshine
Classifications
CWE-428, T1574.009
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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?

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

  1. Affected versionversion=>= 0.17.0, < 0.23.0
  2. Affected versionversion=0.17 <0.23

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

LizardByte · Sunshineversion=>= 0.17.0, < 0.23.0; version=0.17 <0.23

Published CVSS scores

4.9GitHub, Inc.CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H
2.9NIST NVDCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A: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-428Unquoted Search Path or Element
T1574.009Path Interception by Unquoted Path

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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