CVE-2022-3592

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-01-12 · updated 2026-06-17
Weakness: CWE-61

Description

A symlink following vulnerability was found in Samba, where a user can create a symbolic link that will make 'smbd' escape the configured share path. This flaw allows a remote user with access to the exported part of the file system under a share via SMB1 unix extensions or NFS to create symlinks to files outside the 'smbd' configured share path and gain access to another restricted server's filesystem.

Affected products

Fedoraproject Fedora: 36, 37
Samba: from 4.17.0 before 4.17.2 — fixed in 4.17.2

How to fix

Upgrade to a fixed version: Samba 4.17.2. Check the vendor advisory for mitigations.

References

https://access.redhat.com/security/cve/CVE-2022-3592
https://bugzilla.redhat.com/show_bug.cgi?id=2137776
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2022-3592.html
https://access.redhat.com/security/cve/CVE-2022-3592
https://bugzilla.redhat.com/show_bug.cgi?id=2137776
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2022-3592.html

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