A flaw was found in samba's DNS server.
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | samba | samba 4.11.15, samba 4.12.9, samba 4.13.1 | — | No fix listed | CNA |
- samba Vendor— Affected samba 4.11.15, samba 4.12.9, samba 4.13.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2020-14383
- 2026-10-03 Alias added: GHSA-9hpm-fmxg-j5xc
References
Sources
- CVE-2020-14383 · CVE Program
- CVE-2020-14383 · NVD
- FIRST EPSS
- GHSA-9hpm-fmxg-j5xc · GitHub Advisory Database · CC BY 4.0
- CVE-2020-14383 · Red Hat security data · CC BY 4.0
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