VDB-318819 · Submit #621826 · CVE-2025-8586

libav up to 12.3 MPEG File Parser /libavformat/utils.c ff_seek_frame_binary null pointer dereference

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
3.1	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in libav up to 12.3. The affected element is the function ff_seek_frame_binary of the file /libavformat/utils.c of the component MPEG File Parser. Performing a manipulation results in null pointer dereference. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is cataloged as CVE-2025-8586. The attack must be initiated from a local position. Furthermore, there is an exploit available. The bug was initially reported by the researcher to the wrong project.

Detailsinfo

A vulnerability, which was classified as problematic, was found in libav up to 12.3. This affects the function ff_seek_frame_binary of the file /libavformat/utils.c of the component MPEG File Parser. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

It is possible to read the advisory at trac.ffmpeg.org. This vulnerability is uniquely identified as CVE-2025-8586. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at drive.google.com. It is declared as proof-of-concept. The bug was initially reported by the researcher to the wrong project. The vulnerability scanner Nessus provides a plugin with the ID 253390 (Linux Distros Unpatched Vulnerability : CVE-2025-8586), 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 databases at Tenable (253390) and CERT Bund (WID-SEC-2025-1728). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Open Source libav

Productinfo

Type

Multimedia Player Software

Name

libav

Version

License

open-source

Support

end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.1

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 253390
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-8586

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/05/2025 Advisory disclosed
08/05/2025 +0 days VulDB entry created
08/24/2025 +19 days VulDB entry last update

Sourcesinfo

Advisory: 11681
Status: Not defined

CVE: CVE-2025-8586 (🔒)
GCVE (CVE): GCVE-0-2025-8586
GCVE (VulDB): GCVE-100-318819
CERT Bund: WID-SEC-2025-1728 - libav: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/05/2025 11:02
Updated: 08/24/2025 05:17
Changes: 08/05/2025 11:02 (59), 08/06/2025 05:13 (30), 08/06/2025 18:11 (7), 08/07/2025 04:57 (1), 08/24/2025 05:17 (2)
Complete: 🔍
Cache ID: 216::103

Submitinfo

Accepted

Submit #621826: libav avconv 13 && the newest master Segmentation fault (by trac.ffmpeg.org)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.