What’s Vulnerable › Vulnerabilities

CVE-2017-17901

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-12-29 · updated 2026-06-17
• Weakness: CWE-400

Description

ZyXEL P-660HW v3 devices allow remote attackers to cause a denial of service (CPU consumption) via a flood of IP packets with a TTL of 1.

Affected products

• Zyxel P-660Hw Firmware: all versions

References

• http://packetstormsecurity.com/files/145548/ZyXEL-P-660HW-TTL-Expiry-Denial-Of-Service.html
• https://www.zyxel.com/support/announcement_denial_of_service.shtml
• http://packetstormsecurity.com/files/145548/ZyXEL-P-660HW-TTL-Expiry-Denial-Of-Service.html
• https://www.zyxel.com/support/announcement_denial_of_service.shtml

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