CVE-2026-21667
Received
Received - Intake
Authenticated Remote Code Execution Vulnerability in Backup Server
Publication date: 2026-03-12
Last updated on: 2026-03-31
Assigner: HackerOne
Description
Description
A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| veeam | veeam_backup_&_replication | From 12.0.0.1402 (inc) to 12.3.2.4465 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-284 | The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability allows an authenticated domain user to perform remote code execution (RCE) on the Backup Server.
How can this vulnerability impact me? :
The vulnerability can have a severe impact as it allows an authenticated user to execute arbitrary code remotely on the Backup Server, potentially leading to full compromise of the system.
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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