# CVE-2026-106077: Veeam Backup for Microsoft 365 arbitrary file read in Admin role

Source: https://junglewise.ai/threats/cve-2026-106077-a-vulnerability-allowing-a-user-with-the-veeam-backup-for  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-27. Updated: 2026-10-27  
License: CC BY 4.0 with a link back

CVE-2026-106077 · Severity: info · Published 2026-10-27

Veeam Backup for Microsoft 365 is a service that protects Microsoft 365 data through backup and recovery. An authenticated administrator can exploit this vulnerability to read any file on the backup server, potentially exposing sensitive configuration data, credentials, and other confidential information stored on the server.

Technologies: [Veeam Backup for Microsoft 365](https://junglewise.ai/threats/technologies/backup-for-microsoft-365). Vendors: [Veeam](https://junglewise.ai/threats/vendors/veeam).

## Quick answers

**Is CVE-2026-106077 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-106077 being exploited in the wild.

**How severe is CVE-2026-106077?** Informational severity, published 27 October 2026.

**Which products and versions are affected?** Veeam Backup for Microsoft 365 8.5.0.1014 and all earlier version 8 builds.

**Is there a fix for CVE-2026-106077?** Yes: fixed in Veeam Backup for Microsoft 365 8.6 (build 8.6.0.1102). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-106077 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-106077?** Check whether you run Veeam Backup for Microsoft 365 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in Veeam Backup for Microsoft 365 8.6 (build 8.6.0.1102)

## Technical details

An authenticated user with the Administrator role in Veeam Backup for Microsoft 365 can perform arbitrary file read on the backup server with LocalSystem privileges. The vulnerability requires network access and high-level privileges but no user interaction. A successful exploit allows an attacker to exfiltrate sensitive files including configuration databases and service credentials.

## Affected products

- Veeam Backup for Microsoft 365 8.5.0.1014 and all earlier version 8 builds

## Timeline

- 2026-10-27: disclosed

## References

- [https://www.veeam.com/kb4957](https://www.veeam.com/kb4957)

## Related threats

- [Veeam Backup for Microsoft 365 REST API authentication bypass](https://junglewise.ai/threats/cve-2026-106078-a-vulnerability-allowing-an-unauthenticated-attacker-to-bypass)
- [Veeam Backup for Microsoft 365 SQL injection in configuration database](https://junglewise.ai/threats/cve-2026-106076-a-vulnerability-allowing-an-authenticated-organization-transfer)
- [Veeam Backup for Microsoft 365 privilege escalation during installation](https://junglewise.ai/threats/cve-2025-64394-a-vulnerability-allowing-a-low-privileged-local-user-to-write)