CVE-2024-22861Network attack vector

Application crash via signed sample-count overflow

Published Jan 27, 2024 · Updated May 29, 2025

Integer overflow in FFmpeg before 6.1 allows remote attackers to crash applications that decode crafted OSQ audio streams. The OSQ decoder stores nb_samples in a signed 64-bit field, allowing the sample count to cross the signed range during decoding; the patch changes the field to uint64_t. Reachability requires an application to process attacker-supplied OSQ media, and exploitation terminates the decoding process without reported data exposure or modification.

CVSS severity7.5
High
EPSS probability0.61%
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 before 6.1 allows remote attackers to crash applications that decode crafted OSQ audio streams. The OSQ decoder stores nb_samples in a signed 64-bit field, allowing the sample count to cross the signed range during decoding; the patch changes the field to uint64_t. Reachability requires an application to process attacker-supplied OSQ media, and exploitation terminates the decoding process without reported data exposure or modification.

The record

CVE
CVE-2024-22861
Published
Jan 27, 2024
Updated
May 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 27, 2024CVE publishedPublication date reported by the CVE source.
  2. May 29, 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?

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

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 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
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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