CVE-2020-14303

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.

• CWE-834

• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlMailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1851298%3B
• https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
• https://security.gentoo.org/glsa/202007-15Third Party Advisory
• https://security.netapp.com/advisory/ntap-20200709-0003/Third Party Advisory
• https://usn.ubuntu.com/4454-1/Third Party Advisory
• https://usn.ubuntu.com/4454-2/Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-14303.htmlVendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlMailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1851298%3B
• https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
• https://security.gentoo.org/glsa/202007-15Third Party Advisory
• https://security.netapp.com/advisory/ntap-20200709-0003/Third Party Advisory
• https://usn.ubuntu.com/4454-1/Third Party Advisory
• https://usn.ubuntu.com/4454-2/Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-14303.htmlVendor Advisory

Published

Jul 6, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-14298The version of docker as released for Red Hat Enterprise Lin…8.8
• CVE-2020-14299A flaw was found in JBoss EAP, where the authentication conf…6.5
• CVE-2020-1430An elevation of privilege vulnerability exists when the Wind…7.8
• CVE-2020-14300The docker packages version docker-1.13.1-108.git4ef4b30.el7…8.8
• CVE-2020-14301An information disclosure vulnerability was found in libvirt…6.5
• CVE-2020-14302A flaw was found in Keycloak before 13.0.0 where an external…4.9
• CVE-2020-14304A memory disclosure flaw was found in the Linux kernel's eth…4.4
• CVE-2020-14305An out-of-bounds memory write flaw was found in how the Linu…8.1
• CVE-2020-14306An incorrect access control flaw was found in the operator, …8.8
• CVE-2020-14307A vulnerability was found in Wildfly's Enterprise Java Beans…6.5
• CVE-2020-14308In grub2 versions before 2.06 the grub memory allocator does…6.4
• CVE-2020-14309There's an issue with grub2 in all versions before 2.06 when…6.7