CVE-2025-22920Network attack vector

Process crash via tile-grid stream overread

Published Feb 18, 2025 · Updated Feb 19, 2025

Heap buffer overflow in FFmpeg avformat development code allows attackers to crash media processing with a crafted tile-grid file. The dump_stream_group function iterates the tile count and dereferences stg->streams using each tile offset index even when the group contains fewer streams. Processing the file can read beyond the heap stream array and crash the process; FFmpeg states that no released version was affected.

CVSS severity5.3
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in FFmpeg avformat development code allows attackers to crash media processing with a crafted tile-grid file. The dump_stream_group function iterates the tile count and dereferences stg->streams using each tile offset index even when the group contains fewer streams. Processing the file can read beyond the heap stream array and crash the process; FFmpeg states that no released version was affected.

The record

CVE
CVE-2025-22920
Published
Feb 18, 2025
Updated
Feb 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-122, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 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

5.3CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

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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