What’s Vulnerable › Vulnerabilities

CVE-2021-41653

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 76.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-13 · updated 2026-07-09
• Weakness: CWE-94

Description

The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.

Affected products

• TP-Link Tl-Wr840N Firmware: through tl-wr840n\(eu\)_v5_171211

References

• https://k4m1ll0.com/cve-2021-41653.html
• https://www.tp-link.com/us/press/security-advisory/
• https://k4m1ll0.com/cve-2021-41653.html
• https://www.tp-link.com/us/press/security-advisory/

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