CVE-2024-36615Network attack vector

Data race via premature VP9 frame return

Published Nov 29, 2024 · Updated Dec 3, 2024

Race condition in FFmpeg 7.0's VP9 decoder allows remote attackers to trigger unsynchronized access using crafted VP9 video. For show-existing frames under frame threading, vp9_decode_frame returns a reference before decoding finishes, so av_frame_ref reads side data while the decoder thread attaches it. The race requires export of video encoding parameters; published evidence identifies no resulting crash, corruption, or data disclosure.

CVSS severity5.9
Medium
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

Race condition in FFmpeg 7.0's VP9 decoder allows remote attackers to trigger unsynchronized access using crafted VP9 video. For show-existing frames under frame threading, vp9_decode_frame returns a reference before decoding finishes, so av_frame_ref reads side data while the decoder thread attaches it. The race requires export of video encoding parameters; published evidence identifies no resulting crash, corruption, or data disclosure.

The record

CVE
CVE-2024-36615
Published
Nov 29, 2024
Updated
Dec 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-362
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.9CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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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