FFmpeg HLS resource injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in FFmpeg and classified as critical. This affects an unknown part of the component HLS. Performing a manipulation results in Remote Code Execution. This vulnerability was named CVE-2023-6601. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in FFmpeg (the affected version unknown). It has been classified as critical. This affects an unknown part of the component HLS. The manipulation with an unknown input leads to a remote code execution vulnerability. CWE is classifying the issue as CWE-99. The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input before it is used as an identifier for a resource that may be outside the intended sphere of control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2023-6601. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/05/2025).

The vulnerability scanner Nessus provides a plugin with the ID 242064 (Debian dla-4241 : ffmpeg - security update), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (242064). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.7
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource injection
CWE: CWE-99
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 242064
Nessus Name: Debian dla-4241 : ffmpeg - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2024 🔍
11/27/2024 +0 days 🔍
08/05/2025 +251 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2023-6601 (🔍)
GCVE (CVE): GCVE-0-2023-6601
GCVE (VulDB): GCVE-100-286233

Entryinfo

Created: 11/27/2024 07:36
Updated: 08/05/2025 21:07
Changes: 11/27/2024 07:36 (47), 02/23/2025 04:52 (3), 07/15/2025 05:20 (2), 08/05/2025 21:07 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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