CVE-2020-36991 ShareMouse 5.0.43 - 'ShareMouse Service' Unquoted Service Path
Local attackers can execute arbitrary code with elevated privileges by exploiting an unquoted service path in ShareMouse.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-36991?
CVE-2020-36991 is a high-severity vulnerability in ShareMouse, published on 28 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ShareMouse 5.0.43 contains an unquoted service path vulnerability that allows local users to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the insecure service path configuration by placing malicious executables in specific system directories to gain elevated access during service startup.
Weakness: CWE-428
Which versions are affected by CVE-2020-36991?
How do I fix CVE-2020-36991?
No fix has been published for CVE-2020-36991 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-36991 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36991 exists.
Sources
Also known as GHSA-86j4-r9q9-w8xv.