What’s Vulnerable › Vulnerabilities

CVE-2020-8620

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-08-21 · updated 2026-06-17
• Weakness: CWE-617

Description

In BIND 9.15.6 -> 9.16.5, 9.17.0 -> 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit.

Affected products

• Canonical Ubuntu Linux: 12.04, 16.04, 18.04
• ISC BIND: from 9.15.6 through 9.16.5; from 9.17.0 through 9.17.3; 9.9.12-s1, 9.9.13-s1, 9.11.3-s1, 9.11.21-s1
• NetApp Steelstore Cloud Integrated Storage: all versions
• openSUSE Leap: 15.1, 15.2

References

• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
• https://kb.isc.org/docs/cve-2020-8620
• https://security.gentoo.org/glsa/202008-19
• https://security.netapp.com/advisory/ntap-20200827-0003/
• https://usn.ubuntu.com/4468-1/
• https://www.synology.com/security/advisory/Synology_SA_20_19
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
• https://kb.isc.org/docs/cve-2020-8620
• https://security.gentoo.org/glsa/202008-19
• https://security.netapp.com/advisory/ntap-20200827-0003/

Get alerted when CVE-2020-8620 or the next vulnerability affects your stack