PT-2026-8301 · Wavlink · Wavlink Wl-Wn579A3

Kdb3169 · Published 2026-02-15 · Updated 2026-02-18 · CVE-2026-2527

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Wavlink WL-WN579A3 versions up to 20210219

Description A command injection issue exists in the file /cgi-bin/login.cgi. Manipulating the key argument can allow for remote code execution. The vulnerability has been publicly disclosed. The vendor was notified but did not respond.

Recommendations Update Wavlink WL-WN579A3 to a version later than 20210219. As a temporary workaround, restrict access to the /cgi-bin/login.cgi file. Avoid using the key parameter in the /cgi-bin/login.cgi endpoint until the issue is resolved.

Exploit

Fix

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

BDU:2026-02018

CVE-2026-2527

Affected Products

Wavlink Wl-Wn579A3

References · 12

• 🔥 https://github.com/MRAdera/IoT-Vuls/blob/main/wavlink/wn579a3/login.md · Exploit
• https://osv.dev/vulnerability/CVE-2026-2527 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-02018 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-2527 · Security Note
• https://vuldb.com/?submit.748074 · Note
• https://twitter.com/SecAideInfo/status/2024071070131888429 · Twitter Post
• https://t.me/cveNotify/152077 · Telegram Post
• https://vuldb.com/?id.346115 · Note
• https://twitter.com/CVEarity/status/2023296178948112430 · Twitter Post
• https://t.me/CVEtracker/44782 · Telegram Post
• https://vuldb.com/?ctiid.346115 · Note
• https://t.me/cveNotify/152422 · Telegram Post