Veeam RCE bug lets domain users hack backup servers, patch now

Veeam has patched a critical remote code execution vulnerability tracked as CVE-2025-23120 in its Backup & Replication software that impacts domain-joined installations. Ransomware gangs have told BleepingComputer in the past that Veeam Backup & Replication servers are always targets, as it allows them an easy way to steal data and block restoration efforts by deleting backups. According to a technical writeup by watchTowr Labs, who discovered the bug, CVE-2025-23120 is a deserialization vulnerability in the Veeam.Backup.EsxManager.xmlFrameworkDs and Veeam.Backup.Core.BackupSummary .NET classes. The good news is that the flaw only impacts Veeam Backup & Replication installations that are joined to a domain. The flaw was disclosed yesterday and affects Veeam Backup & Replication version 12.3.0.310 and all earlier version 12 builds. Those companies using Veeam Backup & Replication should make it a priority to upgrade to 12.3.1 as soon as possible. "Anyway, you've probably guessed where this is going today - it seems Veeam, despite being a ransomware gang's favourite play toy - didn't learn after the lesson given by Frycos in previous research published. Unfortunately, many companies have joined their Veeam server to a Windows domain, ignoring the company's long-standing best practices. A deserialization flaw is when an application improperly processes serialized data, allowing attackers to inject malicious objects, or gadgets, that can execute harmful code. Furthermore, given ransomware gangs' interest in this application, it is strongly advised to review Veeam's best practices and disconnect the server from your domain. To fix the flaw, Veeam introduced a blacklist of known classes or objects that could be exploited. This flaw would make Veeam installs even more valuable due to the ease with which threat actors can breach the servers. While there are no reports of this flaw being exploited in the wild, watchTowr has shared enough technical details that it would not be surprising to see a proof-of-concept (PoC) released soon.

This Cyber News was published on www.bleepingcomputer.com. Publication date: Thu, 20 Mar 2025 23:35:07 +0000

Cyber News related to Veeam RCE bug lets domain users hack backup servers, patch now

Veeam RCE bug lets domain users hack backup servers, patch now - Veeam has patched a critical remote code execution vulnerability tracked as CVE-2025-23120 in its Backup & Replication software that impacts domain-joined installations. Ransomware gangs have told BleepingComputer in the past that Veeam ...
2 days ago Bleepingcomputer.com CVE-2025-23120

Veeam warns of critical bugs in Veeam ONE monitoring platform - Veeam released hotfixes today to address four vulnerabilities in the company's Veeam ONE IT infrastructure monitoring and analytics platform, two of them critical. The company assigned almost maximum severity ratings to the critical security flaws ...
1 year ago Bleepingcomputer.com CVE-2023-38547 CVE-2023-38549 CVE-2023-41723 FIN7 Cuba

Veeam adds BaaS capabilities for Veeam Backup for Microsoft 365 - Veeam Software has expanded its relationship with Microsoft. Veeam is making it easier for customers to protect Microsoft 365 with Cirrus by Veeam which brings the ease and flexibility of Backup-as-a-Service for Microsoft 365. Utilizing the power and ...
1 year ago Helpnetsecurity.com

Veeam Data Platform 23H2 update enhances resilience against ransomware - 1 release as well as Veeam ONE v12.1 and Veeam Recovery Orchestrator v7. This latest release from Veeam, with a focus on radical resilience, includes hundreds of new features and enhancements designed to not only protect enterprises' most critical ...
1 year ago Helpnetsecurity.com

Veeam RCE Vulnerability Let Any Domain User Hack the Backup Servers - A remote code execution (RCE) vulnerability in Veeam Backup & Replication could allow any domain user to compromise backup servers with SYSTEM-level privileges. The findings, assigned CVE-2025-23120, affect Veeam Backup & Replication ...
1 day ago Cybersecuritynews.com CVE-2025-23120

15 Best Patch Management Tools - 2025 - What is Good?What Could Be Better?Comprehensive patch management for various operating systems, applications, and third-party software.It is complex for new users and requires time and training to utilize its functionalities fully.Advanced analytics ...
2 weeks ago Cybersecuritynews.com

Critical Veeam Backup & Replication Vulnerability Allows Malicious Remote Code Execution - Veeam Backup & Replication, with its large deployment footprint across enterprise environments, represents a significant target for cybercriminals, particularly ransomware operators seeking to disable recovery options before launching attacks. As ...
2 days ago Cybersecuritynews.com

Critical WordPress Plug-in RCE Bug Exposes Reams of Websites to Takeover - A critical unauthenticated remote control execution bug in a backup plug-in that's been downloaded more than 90,000 times exposes vulnerable WordPress sites to takeover - another example of the epidemic of risk posed by flawed plug-ins for the ...
1 year ago Darkreading.com CVE-2023-6553

Business Data Backup and Recovery Planning - Data backup and recovery planning is essential in today's interconnected and data-driven business landscape. By understanding the significance of data backup and recovery planning, businesses can effectively protect their critical information and ...
1 year ago Securityzap.com

Cypher Queries in BloodHound Enterprise - Our first use case is identifying Domain Trusts that exist within an environment. Our specific query here, Map Domain Trusts can be selected which automatically populates the search window with the built-in query. Selecting Search will then return a ...
1 year ago Securityboulevard.com

How Patch Management Software Solves the Update Problem - I've never met an IT leader who doesn't know how important patch management is. At Heimdal, we believe patch management software provides the solution to this problem. Patch management software is a technology that allows businesses to automate the ...
8 months ago Heimdalsecurity.com

Toward Ending the Domain Wars: Early Detection of Malicious Stockpiled Domains - The two main advantages of detecting stockpiled domains are expanding coverage of malicious domains and providing patient-zero detections as attackers stock up on domains for future use. As of July 2023, our detection pipeline has found 1,114,499 ...
1 year ago Unit42.paloaltonetworks.com

Explained: Domain fronting - Domain fronting is a technique of using different domain names on the same HTTPS connection. Put simply, domain fronting hides your traffic when connecting to a specific website. The technique became popular in the early 2010s in the mobile app ...
1 year ago Malwarebytes.com

Week in review: Veeam fixes RCE flaw in backup management platform, Patch Tuesday forecast - Veeam fixes RCE flaw in backup management platformVeeam has patched a high-severity vulnerability in Veeam Service Provider Console and is urging customers to implement the patch. May 2024 Patch Tuesday forecast: A reminder of recent threats and ...
10 months ago Helpnetsecurity.com CVE-2024-3661

Vulnerability Summary for the Week of March 11, 2024 - Published 2024-03-15 CVSS Score not yet calculated Source & Patch Info CVE-2021-47111416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - Product linux - linux Description In the ...
1 year ago Cisa.gov

50K WordPress sites exposed to RCE attacks by critical bug in backup plugin - A critical severity vulnerability in a WordPress plugin with more than 90,000 installs can let attackers gain remote code execution to fully compromise vulnerable websites. Known as Backup Migration, the plugin helps admins automate site backups to ...
1 year ago Bleepingcomputer.com CVE-2023-6553 CVE-2023-45124 Hunters

Hack The Box Launches 5th Annual University CTF Competition - PRESS RELEASE. Hack The Box, the leading gamified cybersecurity upskilling, certification, and talent assessment platform, is announcing its fifth annual global University Capture The Flag competition that will take place from December 8 to 10, 2023. ...
1 year ago Darkreading.com

Exploit for critical Fortra FileCatalyst Workflow SQLi flaw released - The Fortra FileCatalyst Workflow is vulnerable to an SQL injection vulnerability that could allow remote unauthenticated attackers to create rogue admin users and manipulate data on the application database. FileCatalyst Workflow is a web-based file ...
8 months ago Bleepingcomputer.com CVE-2024-5276 CVE-2023-0669

CISA pushes federal agencies to patch Citrix RCE within a week - Today, CISA ordered U.S. federal agencies to secure their systems against three recently patched Citrix NetScaler and Google Chrome zero-days actively exploited in attacks, pushing for a Citrix RCE bug to be patched within a week. Citrix urged ...
1 year ago Bleepingcomputer.com CVE-2023-6548 CVE-2023-6549 CVE-2024-0519

Congressman Coming for Answers After No-Fly List Hack - U.S. Congressman Bennie Thompson is demanding answers from airlines and the federal government after a "massive hack" of the no-fly list. The congressman sent a letter to the airlines and the Department of Homeland Security asking for an explanation ...
2 years ago Therecord.media

Key software patch testing best practices - To ensure a predictable rollout when a patch is deployed across your network, it is important to test it first in a nonproduction environment. Companies install software and firmware patches to fix bugs, remove vulnerabilities and add new features, ...
11 months ago Techtarget.com

How to conduct security patch validation and verification - Validation and verification are important steps in the security patch management lifecycle. They help to determine the impact of a patch on the security and efficiency of an organization's IT assets. Patch validation is the process of examining newly ...
11 months ago Techtarget.com

Vulnerability Summary for the Week of March 4, 2024 - Published 2024-03-06 CVSS Score not yet calculated Source & Patch Info CVE-2023-52584416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - ...
1 year ago Cisa.gov

ConnectWise urges ScreenConnect admins to patch critical RCE flaw - ConnectWise warned customers to patch their ScreenConnect servers immediately against a maximum severity flaw that can be used in remote code execution attacks. This security bug is due to an authentication bypass weakness that attackers can exploit ...
1 year ago Bleepingcomputer.com

Exploit for critical Progress Telerik auth bypass released, patch now - Researchers have published a proof-of-concept exploit script demonstrating a chained remote code execution vulnerability on Progress Telerik Report Servers. The Telerik Report Server is an API-powered end-to-end encrypted report management solution ...
8 months ago Bleepingcomputer.com CVE-2024-4358 CVE-2024-1800