CVE-2021-26827: TP-Link Tl-WR2041+ Firmware

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

Buffer Overflow in TP-Link WR2041 v1 firmware for the TL-WR2041+ router allows remote attackers to cause a Denial-of-Service (DoS) by sending an HTTP request with a very long "ssid" parameter to the "/userRpm/popupSiteSurveyRpm.html" webpage, which crashes the router.

Affected products

• TP-Link Tl-WR2041+ Firmware: affected versions not specified

Published 2021-04-14. Last modified 2026-06-17.