Vulnerability in Realtek Semiconductor Corp. Wireless Lan Utility
CVE-2021-47880
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (3.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Realtek Semiconductor Corp. Wireless Lan Utility — versions 700.1631
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49646 (exploit)
- www.realtek.com/en/ (product)
- www.vulncheck.com/advisories/realtek-wireless-lan-utility-realteknsu-unquoted-s… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47880?
- CVE-2021-47880 is a high-severity vulnerability in Realtek Semiconductor Corp. Wireless Lan Utility, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-21.
- How severe is CVE-2021-47880?
- High severity. CVSS v3 base score is 7.8 out of 10.