Vulnerabilities (CVE)

Filtered by vendor Ntp Subscribe
Total 99 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-13817 4 Fujitsu, Netapp, Ntp and 1 more 40 M10-1, M10-1 Firmware, M10-4 and 37 more 2025-05-05 5.8 MEDIUM 7.4 HIGH
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.
CVE-2020-11868 5 Debian, Netapp, Ntp and 2 more 24 Debian Linux, All Flash Fabric-attached Storage 8300, All Flash Fabric-attached Storage 8300 Firmware and 21 more 2025-05-05 5.0 MEDIUM 7.5 HIGH
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp.
CVE-2015-7692 5 Debian, Netapp, Ntp and 2 more 13 Debian Linux, Clustered Data Ontap, Data Ontap and 10 more 2025-04-20 5.0 MEDIUM 7.5 HIGH
The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
CVE-2017-6460 1 Ntp 1 Ntp 2025-04-20 6.5 MEDIUM 8.8 HIGH
Stack-based buffer overflow in the reslist function in ntpq in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote servers have unspecified impact via a long flagstr variable in a restriction list response.
CVE-2015-7853 2 Netapp, Ntp 6 Clustered Data Ontap, Data Ontap, Oncommand Balance and 3 more 2025-04-20 7.5 HIGH 9.8 CRITICAL
The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.
CVE-2017-6459 1 Ntp 1 Ntp 2025-04-20 2.1 LOW 5.5 MEDIUM
The Windows installer for NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via vectors related to an argument with multiple null bytes.
CVE-2015-7977 8 Canonical, Debian, Fedoraproject and 5 more 12 Ubuntu Linux, Debian Linux, Fedora and 9 more 2025-04-20 4.3 MEDIUM 5.9 MEDIUM
ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (NULL pointer dereference) via a ntpdc reslist command.
CVE-2015-7691 5 Debian, Netapp, Ntp and 2 more 13 Debian Linux, Clustered Data Ontap, Data Ontap and 10 more 2025-04-20 5.0 MEDIUM 7.5 HIGH
The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted packets containing particular autokey operations. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
CVE-2016-1551 2 Ntp, Ntpsec 2 Ntp, Ntpsec 2025-04-20 2.6 LOW 3.7 LOW
ntpd in NTP 4.2.8p3 and NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 relies on the underlying operating system to protect it from requests that impersonate reference clocks. Because reference clocks are treated like other peers and stored in the same structure, any packet with a source ip address of a reference clock (127.127.1.1 for example) that reaches the receive() function will match that reference clock's peer record and will be treated as a trusted peer. Any system that lacks the typical martian packet filtering which would block these packets is in danger of having its time controlled by an attacker.
CVE-2016-9310 1 Ntp 1 Ntp 2025-04-20 6.4 MEDIUM 6.5 MEDIUM
The control mode (mode 6) functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to set or unset traps via a crafted control mode packet.
CVE-2016-9312 2 Microsoft, Ntp 2 Windows, Ntp 2025-04-20 5.0 MEDIUM 7.5 HIGH
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.
CVE-2015-7976 4 Novell, Ntp, Opensuse and 1 more 10 Suse Openstack Cloud, Ntp, Leap and 7 more 2025-04-20 4.0 MEDIUM 4.3 MEDIUM
The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.
CVE-2016-2518 7 Debian, Freebsd, Netapp and 4 more 18 Debian Linux, Freebsd, Clustered Data Ontap and 15 more 2025-04-20 5.0 MEDIUM 5.3 MEDIUM
The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.
CVE-2015-7701 5 Debian, Netapp, Ntp and 2 more 13 Debian Linux, Clustered Data Ontap, Data Ontap and 10 more 2025-04-20 5.0 MEDIUM 7.5 HIGH
Memory leak in the CRYPTO_ASSOC function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (memory consumption).
CVE-2017-6455 1 Ntp 1 Ntp 2025-04-20 4.4 MEDIUM 7.0 HIGH
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.
CVE-2017-6462 1 Ntp 1 Ntp 2025-04-20 4.6 MEDIUM 7.8 HIGH
Buffer overflow in the legacy Datum Programmable Time Server (DPTS) refclock driver in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via a crafted /dev/datum device.
CVE-2015-7973 5 Canonical, Freebsd, Netapp and 2 more 9 Ubuntu Linux, Freebsd, Clustered Data Ontap and 6 more 2025-04-20 5.8 MEDIUM 6.5 MEDIUM
NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.
CVE-2015-8139 1 Ntp 1 Ntp 2025-04-20 5.0 MEDIUM 5.3 MEDIUM
ntpq in NTP before 4.2.8p7 allows remote attackers to obtain origin timestamps and then impersonate peers via unspecified vectors.
CVE-2016-9311 1 Ntp 1 Ntp 2025-04-20 7.1 HIGH 5.9 MEDIUM
ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.
CVE-2015-7975 1 Ntp 1 Ntp 2025-04-20 2.1 LOW 6.2 MEDIUM
The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).