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CVE-2025-23120

KB ID:	4724
Product:	Veeam Backup & Replication \| 12 \| 12.1 \| 12.2 \| 12.3
Published:	2025-03-19
Last Modified:	2025-03-21

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Veeam Software Security Commitment

Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program (VDP) for all Veeam products and perform extensive internal code audits. When a vulnerability is identified, our team promptly develops a patch to address and mitigate the risk. In line with our dedication to transparency, we publicly disclose the vulnerability and provide detailed mitigation information. This approach ensures that all potentially affected customers can quickly implement the necessary measures to safeguard their systems. It’s important to note that once a vulnerability and its associated patch are disclosed, attackers will likely attempt to reverse-engineer the patch to exploit unpatched deployments of Veeam software. This reality underscores the critical importance of ensuring that all customers use the latest versions of our software and install all updates and patches without delay.

Issue Details

CVE-2025-23120

A vulnerability allowing remote code execution (RCE) by authenticated domain users.

Severity: Critical
CVSS v3.1 Score: 9.9AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: Reported by Piotr Bazydlo of watchTowr.

Note: This vulnerability only impacts domain-joined backup servers.

^{Veeam Backup & Replication Security Best Practice Guide > Workgroup or Domain?}

Affected Product

Veeam Backup & Replication 12.3.0.310 and all earlier version 12 builds.
_{Note: Unsupported product versions are not tested, but are likely affected and should be considered vulnerable.}

Solution

The vulnerability documented in this section was fixed starting in the following build:

Veeam Backup & Replication 12.3.1 (build 12.3.1.1139)

More Information

For deployments currently running Veeam Backup & Replication 12.3 (build 12.3.0.310), a hotfix to resolve this vulnerability has been developed and is intended for customers who cannot immediately update to version 12.3.1.

Note: This hotfix can only be installed if the current Veeam Backup & Replication 12.3 deployment has no other hotfixes installed, as it may overwrite earlier hotfixes. If other hotfixes for version 12.3 have been installed, the deployment must be updated to 12.3.1.

download hotfix for 12.3

This hotfix is only compatible with Veeam Backup & Replication 12.3 (build 12.3.0.310).

^{Filename: VeeamBackup&Replication_12.3.0.310_KB4724.zip}

MD5: 5185235DEA2AC9F2814638534B16A6DB
SHA1: 4B1C3A7F2F051D958EAF363E2739B1B38C4A4F8C

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