CVE-2024-35366Network attack vector

Unspecified impact via unchecked negative SBG duration

Published Nov 29, 2024 · Updated Dec 3, 2024

Integer overflow in FFmpeg 6.1.1 allows attackers to cause unspecified impact by supplying an SBG script with a negative duration. The sbgdec parse_options function accepts a negative -L duration, then subtracts it from INT64_MAX in a bounds check, producing signed integer overflow. Processing crafted SBG input is required; public sources do not establish a deterministic consequence beyond the overflow.

CVSS severity9.1
Critical
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in FFmpeg 6.1.1 allows attackers to cause unspecified impact by supplying an SBG script with a negative duration. The sbgdec parse_options function accepts a negative -L duration, then subtracts it from INT64_MAX in a bounds check, producing signed integer overflow. Processing crafted SBG input is required; public sources do not establish a deterministic consequence beyond the overflow.

The record

CVE
CVE-2024-35366
Published
Nov 29, 2024
Updated
Dec 3, 2024
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-190
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?

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

  1. Affected versionversion=6.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=6.1.1

Published CVSS scores

9.1CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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-190Integer Overflow or Wraparound

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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