Detections
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Echo: samba: security update to 2:4.22.10+dfsg-0+deb13u2

medium Tenable Self-Hosted Container Security Plugin ID 465698

Description

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

 - An out-of-bounds read flaw was found in Samba's Kerberos Key Distribution Center's (KDC) password change
 (kpasswd) service. When processing malformed ASN.1-encoded Kerberos password change request, Samba server
 miscalculates the structure size and attempts to read up to six bytes beyond the end of the allocated
 buffer. While this out-of-bounds read typically results in a harmless decryption failure, if the read hits
 unmapped memory, it causes the KDC process to crash. An authenticated attacker can send a specially
 crafted kpasswd request containing malformed ASN.1 data to trigger the out-of-bounds read, which may cause
 the KDC process to terminate, resulting in a denial of service. (CVE-2026-58216)

Solution

Update the samba library and its related packages to version 2:4.22.10+dfsg-0+deb13u2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-58216

Plugin Details

Severity: Medium

ID: 465698

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-58216

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/29/2026

Vulnerability Publication Date: 7/28/2026

Reference Information

CVE: CVE-2026-58216

IAVA: 2026-A-0794