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CVE-2021-43566

2.5 lowEPSS 0.4%

Low (2.5) in samba samba. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

2.5 low
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS
0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE
CWE-362
Published
Modified
Record from
the NVD, synced

Affected

References

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