- Veeam Support Knowledge Base
- List of Security Fixes and Improvements in Veeam Agent for Microsoft Windows
List of Security Fixes and Improvements in Veeam Agent for Microsoft Windows
| KB ID: | 3108 |
| Product: | Veeam Agent for Microsoft Windows | 4.0 | 5.0 | 6.0 | 6.1 | 6.2 | 6.3 | 6.3.1 | 6.3.2 | 6.3.3 | 13 | 13.1 |
| Published: | 2020-03-02 |
| Last Modified: | 2026-10-26 |
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Purpose
This article describes all security-related fixes and improvements introduced in each release or update of Veeam Agent for Microsoft Windows.
This article aims to provide our customers' security and compliance teams with detailed information on security improvements between releases to help them make an informed decision on whether it is critical to upgrade from their current Veeam Agent for Microsoft Windows version to a later one.
Security Fixes and Improvements
13.1.2.812
-
OpenSSL upgraded to version 3.5.8
13.1.0.544
- CVE-2026-58068 vulnerability was fixed.
- CVE-2025-64391 vulnerability was fixed.
- MessagePack upgraded to version 2.5.302
- OpenSSL upgraded to version 3.5.7
13.0.4.1341
- MessagePack upgraded to version 2.5.302
- SQLite upgraded to version 3.53.2
- OpenSSL upgraded to version 3.5.7
13.0.3.1220
- CVE-2026-32996 vulnerability was fixed.
- Microsoft.Kiota.Abstractions upgraded to version 1.22.0
13.0.1.120
- OpenSSL upgraded to version 3.0.17
13.0.0.835
- Communication protocol was switched to gRPC
- OpenSSL upgraded to version 3.0.8
- System.IdentityModel.Tokens.Jwt upgraded to version 8.0.2
6.3.2.1302
- CVE-2025-48982 vulnerability was fixed.
6.3.2.1205
- CVE-2025-24287 vulnerability was fixed.
6.3.0.177
- Vulnerability (CVE-2024-45207) in Veeam Agent for Microsoft Windows was fixed.
6.1.2.134
- Vulnerability (CVE-2024-29853) in Veeam Agent for Microsoft Windows was fixed.
6.1.0.349
- OpenSSL library updated to 1.0.2zi.
- LZ4 library updated to 1.9.4.
- Stronger backup encryption. - (See pg. 7 of Veeam Backup & Replication 12.1 What's New PDF)
6.0.2.1090
- OpenSSL Library updated to the newest version (1.0.2zg).
6.0.0.960
- Added support for networks with NTLM authentication disabled (Kerberos-only authentication).
- Audit capabilities were improved.
- zlib has been updated to version 1.2.13.
- OpenSSL version has been updated to 1.0.2ze.
5.0.3.5029
- OpenSSL was updated to v1.0.2zi.
- liblz4 was updated to v1.9.4.
- zlib was updated to v1.2.13.
- PuTTY was updated to 0.80.
5.0.3.4708
- Vulnerability (CVE-2022-26503) in Veeam Agent for Microsoft Windows was fixed.
This vulnerability was reported by Nikita Petrov (Positive Technologies).
5.0.0.4301
- LZ4 compression library version has been updated to version 1.9.2
4.0.2.2208
- Vulnerability (CVE-2022-26503) in Veeam Agent for Microsoft Windows was fixed.
This vulnerability was reported by Nikita Petrov (Positive Technologies).
4.0.0.1811
- A custom security descriptor was provided for the driver's control device (vulnerability reported by Mile Karry).
- Deserialization issues were fixed (vulnerability reported by Harrison Neal).
- A user authorization issue was fixed (vulnerability reported by Harrison Neal).
- OpenSSL was updated to version 1.0.2t
More Information
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