CVE-2021-47880 Realtek Wireless LAN Utility 700.1631 - 'Realtek11nSU' Unquoted Service Path
Local attackers can execute arbitrary code with elevated privileges by exploiting an unquoted service path in the Realtek Wireless LAN Utility.
- 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-2021-47880?
CVE-2021-47880 is a high-severity vulnerability in Realtek Wireless LAN Utility, published on 21 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Realtek Wireless LAN Utility 700.1631 contains an unquoted service path vulnerability that allows local users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted service path by inserting malicious code in the system root path that would execute during application startup or system reboot.
Weakness: CWE-428
Which versions are affected by CVE-2021-47880?
How do I fix CVE-2021-47880?
No fix has been published for CVE-2021-47880 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-47880 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47880 exists.
Sources
Also known as GHSA-cxv6-8qc3-gf8h.