CVE-2026-21671
Received
Received - Intake
Remote Code Execution in Veeam Backup HA via Backup Admin Role
Publication date: 2026-03-12
Last updated on: 2026-03-31
Assigner: HackerOne
Description
Description
A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| veeam | veeam_backup_&_replication | From 13.0.0.496 (inc) to 13.0.1.1071 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-94 | The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability allows an authenticated user who has the Backup Administrator role to execute remote code on systems running high availability deployments of Veeam Backup & Replication.
How can this vulnerability impact me? :
The vulnerability can lead to remote code execution, which means an attacker with the Backup Administrator role could potentially take full control of the affected system. This can result in complete compromise of confidentiality, integrity, and availability of the backup environment.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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