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Unknown [CVE-2022-26503 +5] List of Security Fixes and Improvements in Veeam Agent for Microsoft Windows

This security Veeam advisory covers CVE-2022-26503 and CVE-2024-29853 and 4 more CVEs.

KB3108 Published Aug 25, 2026
Affected products & platforms
VeeamBackup & ReplicationAgents
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Summary

List of Security Fixes and Improvements in Veeam Agent for Microsoft Windows

KB ID: 3108

Product:

Published: 2020-03-02

Last Modified: 2026-08-25

Purpose

13.1.0.544

  • MessagePack upgraded to version 2.5.302
  • OpenSSL upgraded to version 3.5.7

13.0.4.1341

  • SQLite upgraded to version 3.53.2

13.0.3.1220

  • Microsoft. Kiota. Abstractions upgraded to version 1.22.0

13.0.1.120

13.0.0.835

  • Communication protocol was switched to gRPC
  • System. IdentityModel. Tokens. Jwt upgraded to version 8.0.2

6.3.2.1302

  • CVE-2025-48982 vulnerability was fixed.

6.3.2.1205

6.3.0.177

  • Vulnerability ( CVE-2024-45207 ) in Veeam Agent for Microsoft Windows was fixed.

6.1.2.134

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

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.

5.0.3.5029

  • liblz4 was updated to v1.9.4.
  • zlib was updated to v1.2.13.
  • PuTTY was updated to 0.80.

5.0.3.4708

5.0.0.4301

4.0.2.2208

4.0.0.1811

  • A custom security descriptor was provided for the driver's control device (vulnerability reported by Mile Karry).

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · medium-confidence parse· fetched 45 minutes ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · medium-confidence parse· fetched 45 minutes ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • 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: 2026-08-25 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.

Official advisory · medium-confidence parse· fetched 45 minutes ago·verify at source

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