CVE-2021-26827
7.5 · HIGHOverview
CVE-2021-26827 is a high-severity vulnerability affecting tp-link tl-wr2041\+_firmware. It was published on April 14, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from tp-link. Update tl-wr2041\+_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2021-26827?
CVE-2021-26827 is a high-severity vulnerability affecting tp-link tl-wr2041\+_firmware. It was published on April 14, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-26827?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-26827?
Check the references section for vendor advisories and patches from tp-link. Update tl-wr2041\+_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-26827?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-26827 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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