FFmpeg libavfilter-vf_scale.c libavfilter/vf_scale.c integer overflow

CVSS Meta Temp Score
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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.
4.3$0-$5k1.27+

Summaryinfo

A vulnerability described as problematic has been identified in FFmpeg. This issue affects some unknown processing of the file libavfilter/vf_scale.c of the component libavfilter-vf_scale.c. Such manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2026-38343. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in FFmpeg (unknown version). It has been rated as problematic. Affected by this issue is an unknown code block of the file libavfilter/vf_scale.c of the component libavfilter-vf_scale.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 libavfilter/vf_scale.c component 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-2026-38343 since 04/06/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. 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.

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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-2026-38343 (🔒)
GCVE (CVE): GCVE-0-2026-38343
GCVE (VulDB): GCVE-100-396422

Entryinfo

Created: 08/28/2026 01:38
Changes: 08/28/2026 01:38 (52)
Complete: 🔍
Cache ID: 216::103

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