CVE-2020-8618

Name: CVE-2020-8618
Creator: NVD / NIST
Published: 2020-06-17T22:15:12.977+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 1.83%

Last modified Jun 17, 2026

CVE-2020-8618 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

Description

An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.

Metrics

CVSS 3.1

4.9/10

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

EPSS Probability

1.83%

76.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Isc	Bind	>= 9.16.0, <= 9.16.3
Opensuse	Leap	15.1
Opensuse	Leap	15.2
Netapp	Steelstore Cloud Integrated Storage	All versions
Canonical	Ubuntu Linux	20.04

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlMailing List, Third Party Advisory
https://kb.isc.org/docs/cve-2020-8618Vendor Advisory
https://security.netapp.com/advisory/ntap-20200625-0003/Third Party Advisory
https://usn.ubuntu.com/4399-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlMailing List, Third Party Advisory
https://kb.isc.org/docs/cve-2020-8618Vendor Advisory
https://security.netapp.com/advisory/ntap-20200625-0003/Third Party Advisory
https://usn.ubuntu.com/4399-1/Third Party Advisory

Timeline

Published: Jun 17, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8618?

How severe is CVE-2020-8618?

CVE-2020-8618 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8618?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8618?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST