CVE Tools
Sign in

CVE-2021-3670

Published: Aug 23, 2022Updated: Aug 21, 2025 Sources: CVE List NVD BDUCWE-400
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
1.6%
Top 26.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

MaxQueryDuration not honoured in Samba AD DC LDAP

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400NVD-CWE-noinfo

Affected Products

sambasamba
LibraryLibrary
Operating Systems / unix-bsd
storageredhat
On-prem
Operating Systems / linux-distro
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
samban/a
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
sambaoss-projectDEOperating Systems
redhatcommercialUSOperating Systemsaka red hat
fedoraprojectoss-projectUSOperating Systemsaka fedora project
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=2077533
bugzilla.redhat.com
https://bugzilla.samba.org/show_bug.cgi?id=14694
bugzilla.samba.org
https://gitlab.com/samba-team/samba/-/commit/1d5b155619bc532c46932965b215bd73a920e56f
gitlab.com
and 20 more references View all →

Timeline

Published
Aug 23, 2022
Last Updated
Aug 21, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-3670 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows