Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47880Realtek Wireless LAN Utility 700.1631 - 'Realtek11nSU' Unquoted Service Path
High 7.8
In plain English
A high-severity security flaw in Realtek Wireless LAN Utility from Realtek Semiconductor Corp.. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 95.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Realtek Semiconductor Corp. | Realtek Wireless LAN Utility | 700.1631 |
Weakness: CWE-428 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-49646 exploit
- Realtek Official Homepage product
- VulnCheck Advisory: Realtek Wireless LAN Utility 700.1631 - 'Realtek11nSU' Unquoted Service Path third-party-advisory