CVE-2023-50009

Code execution via undersized Gaussian-blur frames

Published Apr 19, 2024 · Updated Jun 9, 2025

Heap-based buffer overflow in FFmpeg n6.1-3-g466799d4f5 allows local users to execute arbitrary code through the Gaussian-blur video filter. The ff_gaussian_blur_8 routine unconditionally copies two border rows and writes width-minus-two and width-minus-one indexes without first accommodating undersized frames. A crafted small video frame must reach the edge-detection filter, and successful memory corruption executes in the FFmpeg process context.

CVSS severity8.0
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in FFmpeg n6.1-3-g466799d4f5 allows local users to execute arbitrary code through the Gaussian-blur video filter. The ff_gaussian_blur_8 routine unconditionally copies two border rows and writes width-minus-two and width-minus-one indexes without first accommodating undersized frames. A crafted small video frame must reach the edge-detection filter, and successful memory corruption executes in the FFmpeg process context.

The record

CVE
CVE-2023-50009
Published
Apr 19, 2024
Updated
Jun 9, 2025
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-122, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=-

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=-

Published CVSS scores

8.0CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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