What’s Vulnerable › Vulnerabilities

CVE-2021-47880: Realtek Wireless LAN Utility 700.1631 - 'Realtek11nSU' Unquoted Service Path

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-21 · updated 2026-06-17
• Weakness: CWE-428

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

• Realtek Semiconductor Corp. Realtek Wireless LAN Utility: 700.1631

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

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