CVE-2024-31578Network attack vector

Memory corruption via non-reentrant hardware-frame cleanup

Published Apr 17, 2024 · Updated Nov 4, 2025

Heap use-after-free in FFmpeg 6.1.1 allows remote attackers to corrupt memory when Vulkan hardware-frame initialization fails. The av_hwframe_ctx_init error path calls frames_uninit after vulkan_frames_init has already cleaned up, reentering non-reentrant cleanup and dereferencing freed heap state. Reachability requires an application to initialize Vulkan-backed hardware frames and encounter that failure path.

CVSS severity7.5
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap use-after-free in FFmpeg 6.1.1 allows remote attackers to corrupt memory when Vulkan hardware-frame initialization fails. The av_hwframe_ctx_init error path calls frames_uninit after vulkan_frames_init has already cleaned up, reentering non-reentrant cleanup and dereferencing freed heap state. Reachability requires an application to initialize Vulkan-backed hardware frames and encounter that failure path.

The record

CVE
CVE-2024-31578
Published
Apr 17, 2024
Updated
Nov 4, 2025
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-416
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=n6.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=n6.1.1

Published CVSS scores

7.5CISACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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

Weakness, pattern, technique

CWE-416Use After Free

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

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Your stack

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