CVE-2025-4532

Local privilege escalation via uncontrolled DLL search

Published May 11, 2025 · Updated May 12, 2025

Uncontrolled DLL search in SunloginClient 15.8.3.19819 allows local users to execute code with elevated privileges. The public record identifies process.dll in sunlogin_guard.exe but does not disclose the searched filename, directory order, or attacker-controlled path. Exploitation requires low-privileged local access and high-complexity conditions; successful library loading grants the guard process's privileges.

CVSS severity7.3
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled DLL search in SunloginClient 15.8.3.19819 allows local users to execute code with elevated privileges. The public record identifies process.dll in sunlogin_guard.exe but does not disclose the searched filename, directory order, or attacker-controlled path. Exploitation requires low-privileged local access and high-complexity conditions; successful library loading grants the guard process's privileges.

The record

CVE
CVE-2025-4532
Published
May 11, 2025
Updated
May 12, 2025
Vendor
Shanghai Best Oray Information Technology Co., Ltd.
Product
SunloginClient
Classifications
CWE-427, CWE-426, T1574.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=15.8.3.19819

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Shanghai Best Oray Information Technology Co., Ltd. · SunloginClientversion=15.8.3.19819

Published CVSS scores

7.3VulDB CNACVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.0VulDB CNACVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0VulDB CNACVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.0VulDB CNAAV:L/AC:H/Au:S/C:C/I:C/A:C

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-427Uncontrolled Search Path Element
CWE-426Untrusted Search Path
T1574.001Hijack Execution Flow: DLL

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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