What’s Vulnerable › Vulnerabilities

CVE-2021-26827

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-14 · updated 2026-06-17
• Weakness: CWE-120

Description

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: all versions

References

• https://github.com/GD008/vuln/blob/main/tplink_wr2041/tplink_WR2041pv1.md
• https://github.com/GD008/vuln/blob/main/tplink_wr2041/tplink_WR2041pv1.md

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