CVE-2017-6455

Severity: high (CVSS 7.0 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: none known
Published: 2017-03-27 · updated 2026-06-17
Weakness: CWE-94

Description

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.

Affected products

NTP: 4.2.8-p9, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4 (+89)

References

http://support.ntp.org/bin/view/Main/NtpBug3384
http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu
http://www.securityfocus.com/bid/97074
http://www.securitytracker.com/id/1038123
http://www.securitytracker.com/id/1039427
https://support.apple.com/HT208144
http://support.ntp.org/bin/view/Main/NtpBug3384
http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu
http://www.securityfocus.com/bid/97074
http://www.securitytracker.com/id/1038123
http://www.securitytracker.com/id/1039427
https://support.apple.com/HT208144

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