CVE-2020-14383

What it is

A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of service disruption.

Exploit odds

2.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-12-02 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:54 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.2% in the next 30 days (EPSS).
• Severity: 6.5 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-12-02 01:15 UTC

Last modified

2026-06-17 02:54 UTC

Exploit probability

2.2% · EPSS, next 30 days

Weakness

CWE-391

Record status

Modified

Affected

• Samba < 4.11.15
• Samba < 4.12.9
• Samba < 4.13.1
• Redhat Enterprise Linux 8.0

Attack profile CVSS 3.1 · 6.5

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-14383.md and follow it. Check whether this project is affected by CVE-2020-14383. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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