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CVE-2020-13817

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 pa...

Published: Jun 4, 2020Updated: May 5, 2025 Sources: CVE List NVD BDU csafCWE-330
NVD MITRE
7.4CVSSHIGH
EPSS Score
4.1%
Top 10.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Successful exploitation of these vulnerabilities could allow an attacker to compromise availability, integrity, and confidentiality of the targeted devices.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-330

Affected Products

n/an/a
ntpntp
On-prem
Networking Infrastructure / dns-dhcp-ntp
cloud backupnetappHardware Firmware
clustered data ontapnetappHardware Firmware
data ontapnetappHardware Firmware
ntposs-projectNetworking Infrastructureaka ntp daemon
netappcommercialUSHardware Firmware
and 25 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2023/icsa-23-234-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-23-234-01
cisa.gov
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
cisa.gov
and 32 more references View all →

Timeline

Published
Jun 4, 2020
Last Updated
May 5, 2025

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