CVE-2018-8956

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.04% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.3% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-05-06 18:03Z6 YR AGO

Last updated

2024-08-05 07:10Z2 YR AGO

Reserved

2018-03-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

2ecf5d3db874f2f8c75b407b4d91920bd48f9bc135bbc077891a8f647701979d

• www.ntp.orghttp://www.ntp.org/x_refsource_MISC
• tools.ietf.orghttps://tools.ietf.org/html/rfc5905x_refsource_MISC
• nikhiltripathi.inhttps://nikhiltripathi.in/NTP_attack.pdfx_refsource_MISC
• arxiv.orghttps://arxiv.org/abs/2005.01783x_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20200518-0006/x_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2020:0934http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1007http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.htmlvendor-advisoryx_refsource_SUSE