Detections
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Echo: samba: security update to 2:4.1.22+dfsg-1

medium Tenable Cloud Security Plugin ID 463780

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are
 encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted
 downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and
 smbXcli_base.c. (CVE-2015-5296)

Solution

Update the samba library and its related packages to version 2:4.1.22+dfsg-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2015-5296

Plugin Details

Severity: Medium

ID: 463780

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 8.67

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2015-5296

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 12/16/2015

Reference Information

CVE: CVE-2015-5296

IAVA: 2016-A-0002-S