What’s Vulnerable › Vulnerabilities

CVE-2016-9312

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 31.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-13 · updated 2026-06-17
• Weakness: CWE-399

Description

ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.

Affected products

• NTP: through 4.2.8

References

• http://nwtime.org/ntp428p9_release/
• http://support.ntp.org/bin/view/Main/NtpBug3110
• http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
• http://www.securityfocus.com/bid/94450
• http://www.securitytracker.com/id/1037354
• https://bto.bluecoat.com/security-advisory/sa139
• https://www.kb.cert.org/vuls/id/633847
• http://nwtime.org/ntp428p9_release/
• http://support.ntp.org/bin/view/Main/NtpBug3110
• http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
• http://www.securityfocus.com/bid/94450
• http://www.securitytracker.com/id/1037354

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