PT-2026-3832 · Realtek · Realtek Wireless Lan Utility

Luis Martinez · Published 2021-03-14 · Updated 2026-01-21 · CVE-2021-47880

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Realtek Wireless LAN Utility version 700.1631

Description The Realtek Wireless LAN Utility contains an unquoted service path issue. This allows local users to potentially run code with higher system permissions. An attacker can exploit this by placing malicious code in the system root path, which would then run when the application starts or the system restarts.

Recommendations Update Realtek Wireless LAN Utility to a version that addresses this issue. As a temporary workaround, restrict access to the system root path to prevent the placement of malicious code.

Exploit

Fix

Weakness Enumeration

CWE-428

Related Identifiers

BDU:2026-02195

CVE-2021-47880

Affected Products

Realtek Wireless Lan Utility

References · 6

• 🔥 https://exploit-db.com/exploits/49646 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47880 · Security Note
• https://bdu.fstec.ru/vul/2026-02195 · Security Note
• https://vulncheck.com/advisories/realtek-wireless-lan-utility-realteknsu-unquoted-service-path · Note
• https://t.me/CVEtracker/42671 · Telegram Post
• https://realtek.com/en · Note