CVE-2020-14303

HIGH
7.5
CVSS Score
Published: July 6, 2020 at 05:12 PM UTC
Updated: June 17, 2026 at 02:54 AM UTC
5 products affected across 5 vendorsDebian LinuxFedoraUbuntu Linux

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Severity
HIGH7.5
Exploit prediction
EPSS 4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.10.174.10.0 ≤ v < 4.10.174.11.0 ≤ v < 4.11.114.12.0 ≤ v < 4.12.4
Affected range stops below 4.10.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.11.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.12.4, so it looks safe — our inference, not a vendor statement

References (11)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-834

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