CVE-2025-49148 - CVE House
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Status published High CVE-2025-49148

ClipShare Server Allows Local Privilege Escalation via DLL Hijacking

Vulnerability Description

ClipShare is a lightweight and cross-platform tool for clipboard sharing. Prior to 3.8.5, ClipShare Server for Windows uses the default Windows DLL search order and loads system libraries like CRYPTBASE.dll and WindowsCodecs.dll from its own directory before the system path. A local, non-privileged user who can write to the folder containing clip_share.exe can place malicious DLLs there, leading to arbitrary code execution in the context of the server, and, if launched by an Administrator (or another elevated user), it results in a reliable local privilege escalation. This vulnerability is fixed in 3.8.5.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

Affected Vendor

Affected Software

clip_share_server
Vulnerable Versions:
< 3.8.5

Timeline

Official Publish: June 11th, 2025
Last Modified: June 11th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-427

MITRE ATT&CK TTPs

T1574 Hijack Execution Flow
Persistence
T1574.001 DLL Search Order Hijacking
Privilege Escalation
T1547 Boot or Logon Autostart Execution
Persistence
T1036 Masquerading
Defense Evasion
T1059 Command and Scripting Interpreter
Execution