FFmpeg Slice /libswscale/slice.c get_min_buffer_size null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k1.62-

Summaryinfo

A vulnerability described as problematic has been identified in FFmpeg. Affected by this issue is the function get_min_buffer_size of the file /libswscale/slice.c of the component Slice. The manipulation results in null pointer dereference. This vulnerability was named CVE-2026-38344. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in FFmpeg (unknown version). Affected is the function get_min_buffer_size of the file /libswscale/slice.c of the component Slice. 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. CVE summarizes:

A NULL pointer dereference in the get_min_buffer_size function (/libswscale/slice.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.

The advisory is shared for download at code.ffmpeg.org. This vulnerability is traded as CVE-2026-38344 since 04/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

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 CERT Bund (WID-SEC-2026-3064). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Open Source ffmpeg

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/06/2026 CVE reserved
08/27/2026 +143 days VulDB entry created
08/28/2026 +0 days Advisory disclosed
08/28/2026 +0 days VulDB entry last update

Sourcesinfo

Product: ffmpeg.org

Advisory: code.ffmpeg.org
Status: Not defined

CVE: CVE-2026-38344 (🔒)
GCVE (CVE): GCVE-0-2026-38344
GCVE (VulDB): GCVE-100-396408
CERT Bund: WID-SEC-2026-3064 - ffmpeg: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 08/28/2026 01:31
Updated: 08/28/2026 11:48
Changes: 08/28/2026 01:31 (53), 08/28/2026 11:48 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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