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CVE-2021-43566

nvd nist
Published: Jan 11, 2022Modified: Jun 17, 2026

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2.5
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Exploitability: 1.0 / Impact: 1.4
Source: NVD

Description

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.

Affected (1)

Products: Samba: Samba
Samba
1 product
Samba
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Samba
Before 4.13.16

Related CWEs

CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (6)

Source: cve@mitre.org
ExploitIssue TrackingVendor Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

No history available yet.