# CVE-2026-56844: Veeam Software Appliance path traversal in Updater component

Source: https://junglewise.ai/threats/cve-2026-56844-veeam-software-appliance-path-traversal-in-updater-component  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-22. Updated: 2026-07-22  
License: CC BY 4.0 with a link back

CVE-2026-56844 · Severity: info · CVSS 8.4 · Published 2026-07-22

A vulnerability in the update component of Veeam's Linux-based backup appliances could allow a user with existing access to take full control of the system. By exploiting this flaw, an attacker could gain root-level privileges, potentially leading to the theft of backup data, service disruption, or further compromise of the backup infrastructure. Most systems will receive a fix automatically, but isolated environments require manual intervention to ensure data remains protected.

Technologies: [Veeam Backup & Replication](https://junglewise.ai/threats/technologies/backup-replication). Vendors: [Veeam](https://junglewise.ai/threats/vendors/veeam).

## Quick answers

**Is CVE-2026-56844 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-56844 being exploited in the wild.

**How severe is CVE-2026-56844?** Informational severity, with a CVSS score of 8.4, published 22 July 2026.

**Which products and versions are affected?** Veeam Backup & Replication Versions prior to 13.0.2; Veeam Infrastructure Appliance Updater component versions prior to 12.3.0.65; Veeam Software Appliance Updater component versions prior to 12.3.0.65.

**Is there a fix for CVE-2026-56844?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-56844 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-56844?** Check whether you run Veeam Backup & Replication, Veeam Infrastructure Appliance or Veeam Software Appliance 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.

## Technical details

A path traversal vulnerability (CWE-22) exists in the Veeam Updater component used in Linux-based Veeam Software and Infrastructure Appliances. A local attacker with high privileges can exploit this flaw to bypass directory restrictions, leading to full root-level access to the underlying operating system. The vulnerability is specific to the Linux-based appliance versions and does not affect Windows-based backup servers. The issue is resolved in Veeam Updater version 12.3.0.65, which is typically deployed via automatic updates unless the appliance is air-gapped or lacks internet access.

## Affected products

- Veeam Veeam Software Appliance Updater component versions prior to 12.3.0.65
- Veeam Veeam Infrastructure Appliance Updater component versions prior to 12.3.0.65
- Veeam Veeam Backup & Replication (Linux-based) Versions prior to 13.0.2

## Timeline

- 2026-07-14: advisory: Veeam published KB4879
- 2026-07-21: disclosed: CVE published to NVD dataset

## References

- [https://www.veeam.com/kb4879](https://www.veeam.com/kb4879)

## Related threats

- [Veeam Backup & Replication authorization bypass in CDP Coordinator](https://junglewise.ai/threats/cve-2026-108142-a-vulnerability-allowing-an-unauthenticated-attacker-to-bypass)
- [Veeam Backup & Replication path traversal in restore](https://junglewise.ai/threats/cve-2026-108141-a-vulnerability-allowing-an-authenticated-user-with-the-restore)
- [Veeam Backup & Replication path traversal via restore operator](https://junglewise.ai/threats/cve-2026-108140-a-vulnerability-allowing-an-authenticated-user-with-the-restore)
- [Veeam Backup & Replication privilege escalation in Enterprise Manager](https://junglewise.ai/threats/cve-2026-93026-this-vulnerability-in-veeam-backup-replication-allows-a-backup)
- [Veeam Backup & Replication arbitrary file read in Cloud Connect](https://junglewise.ai/threats/cve-2026-58069-this-vulnerability-in-veeam-backup-replication-allows-an)