Vulnerability Intelligence Report
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 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.
No Active Exploit Signals
CVSS Base Score
7.4
HIGH
Exploitability:2.3
Impact Score:5.2
EPSS Probability:4.07%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-330 ↗CWE-330 Use of Insufficiently Random Values
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| ntp | ntp | 4.2.8 |
| netapp | cloud_backup | all |
| netapp | clustered_data_ontap | all |
| netapp | data_ontap | all |
| netapp | element_software | all |
| netapp | hci_management_node | all |
| netapp | ontap_tools | all |
| netapp | solidfire | all |
| netapp | steelstore_cloud_integrated_storage | all |
| netapp | hci_compute_node_firmware | all |
| netapp | hci_compute_node | all |
| netapp | h410c_firmware | all |
| netapp | h410c | all |
| netapp | h300s_firmware | all |
| netapp | h300s | all |
| netapp | h500s_firmware | all |
| netapp | h500s | all |
| netapp | h700s_firmware | all |
| netapp | h700s | all |
| netapp | h300e_firmware | all |
| netapp | h300e | all |
| netapp | h500e_firmware | all |
| netapp | h500e | all |
| netapp | h700e_firmware | all |
| netapp | h700e | all |
| netapp | h410s_firmware | all |
| netapp | h410s | all |
| opensuse | leap | 15.1, 15.2 |
| fujitsu | m10-1_firmware | all |
| fujitsu | m10-1 | all |
| fujitsu | m10-4_firmware | all |
| fujitsu | m10-4 | all |
| fujitsu | m10-4s_firmware | all |
| fujitsu | m10-4s | all |
| fujitsu | m12-1_firmware | all |
| fujitsu | m12-1 | all |
| fujitsu | m12-2_firmware | all |
| fujitsu | m12-2 | all |
| fujitsu | m12-2s_firmware | all |
| fujitsu | m12-2s | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
4.071%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2020-06-04T00:00:00 |
| Published | 2020-06-04T12:31:55 |
| Last Updated | 2025-05-05T17:07:58 |
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