THREATPORT/VULNERABILITY/CVE-2020-14303
HIGH SEVERITY

CVE-2020-14303

Samba vulnerability

CVSS
7.5
EPSS
3.5%
EPSS pct
88th
Exploited
No known
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 vendor
Samba
Affected product
Samba
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2020-07-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2020-14303

  • Confirm whether Samba Samba is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-14303.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-14303

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-14303 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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