What is CVE-2020-11868?

CVE-2020-11868 is a high-severity vulnerability in NetApp All Flash Fabric-Attached Storage 8300, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2020-04-17.

How severe is CVE-2020-11868?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in NetApp All Flash Fabric-Attached Storage 8300

CVE-2020-11868

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.

Published 2020-04-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.8th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

lists.debian.org/debian-lts-announce/2020/05/msg00004.html (mailing-list, Mailing List, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html (vendor-advisory, Mailing List, Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html (vendor-advisory, Mailing List, Third Party Advisory)
security.gentoo.org/glsa/202007-12 (vendor-advisory, Third Party Advisory)
www.oracle.com//security-alerts/cpujul2021.html (Patch, Third Party Advisory)
support.ntp.org/bin/view/Main/NtpBug3592 (Patch, Vendor Advisory)
bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
security.netapp.com/advisory/ntap-20200424-0002/ (Third Party Advisory)

Frequently asked questions

What is CVE-2020-11868?: CVE-2020-11868 is a high-severity vulnerability in NetApp All Flash Fabric-Attached Storage 8300, classified under Origin Validation Error. CVSS score: 7.5/10. Published 2020-04-17.
How severe is CVE-2020-11868?: High severity. CVSS v3 base score is 7.5 out of 10.