---
title: "CVE-2023-6601\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2023-6601?format=md
keywords: index, follow
---

# CVE-2023-6601

Publication date 6 January 2025

Last updated 11 July 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**4.7 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2023-6601?format=md#impact-score)

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## Description

A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows
bypassing unsafe file extension checks and triggering arbitrary demuxers
via base64-encoded data URIs appended with specific file extensions.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2023-6601?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ffmpeg | 26.04 LTS resolute | Vulnerable, fix deferred |
| 25.10 questing | Ignored end of life, was deferred [2025-06-02] |
| 25.04 plucky | Ignored end of life, was deferred [2025-06-02] |
| 24.10 oracular | Ignored end of life, was deferred [2025-06-02] |
| 24.04 LTS noble | Vulnerable, fix deferred |
| 22.04 LTS jammy | Vulnerable, fix deferred |
| 20.04 LTS focal | Vulnerable, fix deferred |
| 18.04 LTS bionic | Vulnerable, fix deferred |
| 16.04 LTS xenial | Vulnerable, fix deferred |
| libav | 26.04 LTS resolute | Not in release |
| 25.10 questing | Not in release |
| 25.04 plucky | Not in release |
| 24.10 oracular | Not in release |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release |
| 20.04 LTS focal | Not in release |
| 14.04 LTS trusty | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

---

### [bruce-cable](https://launchpad.net/~bruce-cable)

As of 2025-06-02 no patch available

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

4.7 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Changed |
  | Confidentiality impact | Low |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 4.7 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6601)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2023-6601)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2023-6601)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2023-6601)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2023-6601>
* <https://bugzilla.redhat.com/show_bug.cgi?id=2253172>