CVE-2021-47880

Realtek Wireless LAN Utility 700.1631 - 'Realtek11nSU' Unquoted Service Path

CVSS 8.5 HIGHEPSS 0.1%CWE-428

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Realtek Semiconductor Corp. · Realtek Wireless LAN Utility

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References

https://www.exploit-db.com/exploits/49646 https://www.realtek.com/en/https://www.vulncheck.com/advisories/realtek-wireless-lan-utility-realteknsu-unquoted-service-path