FFmpeg libswscale/output.c yuv2planeX_8_c integer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k2.43-

Summaryinfo

A vulnerability classified as problematic was found in FFmpeg. This vulnerability affects the function yuv2planeX_8_c of the file libswscale/output.c. Such manipulation leads to integer overflow. This vulnerability is referenced as CVE-2026-38346. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in FFmpeg (version unknown) and classified as problematic. Affected by this issue is the function yuv2planeX_8_c of the file libswscale/output.c. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is availability. CVE summarizes:

An integer overflow in the yuv2planeX_8_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.

The advisory is available at code.ffmpeg.org. This vulnerability is handled as CVE-2026-38346 since 04/06/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/28/2026).

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). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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: Integer overflow
CWE: CWE-190 / CWE-189
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-2026-38346 (🔒)
GCVE (CVE): GCVE-0-2026-38346
GCVE (VulDB): GCVE-100-396410
CERT Bund: WID-SEC-2026-3064 - ffmpeg: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 08/28/2026 01:32
Updated: 08/28/2026 11:48
Changes: 08/28/2026 01:32 (52), 08/28/2026 11:48 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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