# CVE-2025-48983: Privilege escalation in Backup and Replication

> An authenticated domain user can achieve remote code execution on Veeam Backup infrastructure hosts via the Mount service.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Oct 2025
- **Updated:** 26 Feb 2026
- **Also known as:** GHSA-38j8-hq5r-g743

## What is CVE-2025-48983?

CVE-2025-48983 is a critical vulnerability in Veeam Backup and Replication, published on 30 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the Mount service of Veeam Backup & Replication, which allows for remote code execution (RCE) on the Backup infrastructure hosts by an authenticated domain user.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2025-48983?

It affects 1 product.


Products: Veeam Veeam Backup \& Replication.

## How do I fix CVE-2025-48983?

No fix has been published for CVE-2025-48983 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-48983 being exploited?

There is no known exploitation of CVE-2025-48983 in the wild and no public exploit code.

## Other vulnerabilities in Veeam Backup and Replication

- [CVE-2024-40711](https://insights.sbomify.com/CVE-2024-40711/): Veeam Backup and Replication Deserialization (critical 9.8, exploited in the wild)
- [CVE-2022-26501](https://insights.sbomify.com/CVE-2022-26501/): Veeam Backup & Replication Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-26500](https://insights.sbomify.com/CVE-2022-26500/): Veeam Backup & Replication Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2023-27532](https://insights.sbomify.com/CVE-2023-27532/): Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function (high 7.5, exploited in the wild)
- [CVE-2026-21666](https://insights.sbomify.com/CVE-2026-21666/): Missing authorization in Backup and Replication (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-48983 and fix it if it is affected.

What it is: CVE-2025-48983 is a critical vulnerability in Veeam Backup and Replication, published on 30 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-48983 in the wild and no public exploit code.

Affected product: Veeam Backup and Replication. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-48983/ (Markdown: https://insights.sbomify.com/CVE-2025-48983/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-48983
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-48983
- OSV: https://osv.dev/vulnerability/CVE-2025-48983

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-48983/
Summaries are generated and may contain mistakes; the official description above is the record.