What’s Vulnerable › Vulnerabilities

CVE-2017-9466

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-06-26 · updated 2026-06-17
• Weakness: CWE-327

Description

The executable httpd on the TP-Link WR841N V8 router before TL-WR841N(UN)_V8_170210 contained a design flaw in the use of DES for block encryption. This resulted in incorrect access control, which allowed attackers to gain read-write access to system settings through the protected router configuration service tddp via the LAN and Ath0 (Wi-Fi) interfaces.

Affected products

• TP-Link Wr841N V8 Firmware: through tl-wr841n_v8_140724

References

• http://blog.senr.io/blog/cve-2017-9466-why-is-my-router-blinking-morse-code
• http://blog.senr.io/blog/cve-2017-9466-why-is-my-router-blinking-morse-code

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