CVE-2025-48982
📋 TL;DR
This vulnerability in Veeam Agent for Microsoft Windows allows local attackers to escalate privileges to SYSTEM level by tricking an administrator into restoring a malicious file. It affects systems where Veeam Agent is installed and administrators perform restore operations. The attack requires social engineering to convince an admin to restore a specially crafted file.
💻 Affected Systems
- Veeam Agent for Microsoft Windows
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with SYSTEM privileges, allowing installation of persistent malware, credential theft, and full control over the Windows system.
Likely Case
Local privilege escalation to SYSTEM level, enabling attackers to bypass security controls, install backdoors, or access sensitive data.
If Mitigated
Limited impact if administrators follow strict restore procedures and verify file sources before restoration.
🎯 Exploit Status
Exploitation requires social engineering to convince an administrator to restore a malicious file, making it more complex than automated attacks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Veeam KB4771 for specific patched versions
Vendor Advisory: https://www.veeam.com/kb4771
Restart Required: Yes
Instructions:
1. Visit Veeam KB4771 advisory. 2. Download and install the latest Veeam Agent for Microsoft Windows update. 3. Restart the system to complete the installation.
🔧 Temporary Workarounds
Restrict Restore Permissions
windowsLimit which users can perform restore operations to only trusted administrators who follow strict verification procedures.
File Source Verification
allImplement policies requiring administrators to verify the source and integrity of all files before restoration.
🧯 If You Can't Patch
- Implement strict restore procedures requiring multi-person verification before any file restoration
- Monitor and audit all restore operations for unusual activity or untrusted file sources
🔍 How to Verify
Check if Vulnerable:
Check Veeam Agent version against the patched versions listed in Veeam KB4771Check Version:
Open Veeam Agent for Microsoft Windows and check Help > About for version informationVerify Fix Applied:
Verify Veeam Agent version is updated to the patched version specified in the advisory📡 Detection & Monitoring
Log Indicators:
- Unusual restore operations from untrusted sources
- Multiple failed restore attempts
- Restore operations by non-standard administrators
Network Indicators:
- No specific network indicators as this is a local privilege escalation
SIEM Query:
EventID=4688 AND ProcessName LIKE '%Veeam%' AND CommandLine LIKE '%restore%'