CVE-2025-49148 ClipShare Server Allows Local Privilege Escalation via DLL Hijacking
Local attackers can escalate privileges to Administrator by placing malicious DLLs in the application directory due to insecure DLL search order.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-49148?
CVE-2025-49148 is a high-severity vulnerability in thevindu-w clip_share_server, published on 11 Jun 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-427
Which versions are affected by CVE-2025-49148?
How do I fix CVE-2025-49148?
No fix has been published for CVE-2025-49148 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-49148 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-49148 exists.
Sources
Also known as GHSA-rc47-h83g-2r8j.