CVE-2023-51793

Code execution via odd-height weave buffer overflow

Published Apr 19, 2024 · Updated Nov 4, 2025

Buffer overflow in FFmpeg snapshot N113007-g8d24a28d06 allows local users to execute arbitrary code through odd-height video input. The vf_weave weave_slice routine copied both fields for the final plane row without accounting for the output buffer's rounded height, writing beyond the allocated frame. Exploitation requires local execution of the weave filter on crafted media and can corrupt memory within the FFmpeg process.

CVSS severity7.8
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Buffer overflow in FFmpeg snapshot N113007-g8d24a28d06 allows local users to execute arbitrary code through odd-height video input. The vf_weave weave_slice routine copied both fields for the final plane row without accounting for the output buffer's rounded height, writing beyond the allocated frame. Exploitation requires local execution of the weave filter on crafted media and can corrupt memory within the FFmpeg process.

The record

CVE
CVE-2023-51793
Published
Apr 19, 2024
Updated
Nov 4, 2025
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-120, T1203
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=-

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

FFmpeg · FFmpegversion=-

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo