High 7.8Published Jan 21, 2026

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

Updated under an hour ago (Oct 26, 2026, 9:30 PM ET)

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It affects Realtek Semiconductor Corp. Realtek Wireless LAN Utility. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Realtek Semiconductor Corp. Realtek Wireless LAN Utility

Exploited in the last 30 days

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: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-428
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jan 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Realtek Semiconductor Corp. Realtek Wireless LAN Utility realtek_semiconductor:realtek_wireless_lan_utility (from the name)	700.1631	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.