Veeam Backup and Replication < 12.3.2.4854 (kb4869)

critical Nessus Plugin ID 320202

Synopsis

The version of Veeam Backup and Replication installed on the remote host is affected by a vulnerability.

Description

The version of Veeam Backup and Replication installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the kb4869 advisory.

- A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
(CVE-2026-44963)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Veeam Backup and Replication version 12.3.2.4854 or later.

Plugin Details

Severity: Critical

ID: 320202

File Name: veeam_backup_and_replication_kb4869.nasl

Version: 1.1

Type: Local

Agent: windows

Family: Windows

Published: 6/9/2026

Updated: 6/9/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2026-44963

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.4

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Vulnerability Information

CPE: cpe:/a:veeam:backup_and_replication

Required KB Items: SMB/Registry/Enumerated, installed_sw/Veeam Backup and Replication

Exploit Ease: No known exploits are available

Patch Publication Date: 6/9/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2026-44963

Detections

Analytics