SARA / Free Tools / CVE / CVE-2023-3961

CVE-2023-3961 — A path traversal vulnerability was identified in Samba when processing client pi

A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, whic

CVSS
9.1 CRITICAL
EPSS
1.94% (top 16.70%)
CWE
CWE-22
Published
2023-11-03T12:32:29.558Z
Last modified
2025-11-20T19:51:41.372Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

01What is this vulnerability?

A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client…

02Affected products

VendorProductVersions
Red HatRed Hat Enterprise Linux 80:4.18.6-2.el8_9
Red HatRed Hat Enterprise Linux 80:4.18.6-2.el8_9
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support0:4.15.5-13.el8_6
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:4.17.5-4.el8_8
Red HatRed Hat Enterprise Linux 90:4.18.6-101.el9_3
Red HatRed Hat Enterprise Linux 90:4.18.6-101.el9_3
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:4.15.5-111.el9_0
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:4.17.5-104.el9_2
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 80:4.15.5-13.el8_6
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Storage 3unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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