CVE-2025-70299Public exploitNetwork attack vector

Application crash via undersized AVI SuperIndex allocation

Published Jan 15, 2026 · Updated Jan 15, 2026

Heap-based buffer overflow in GPAC 2.4.0 allows remote attackers to crash applications that parse a crafted AVI file. The AVI demuxer's avi_parse_input_file() allocates SuperIndex storage from the untrusted wLongsPerEntry value but writes 16-byte entries regardless, causing an out-of-bounds heap write. Exploitation requires a user or consuming application to parse the file; the demonstrated consequence is a reliable process crash, not code execution.

CVSS severity6.5
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-based buffer overflow in GPAC 2.4.0 allows remote attackers to crash applications that parse a crafted AVI file. The AVI demuxer's avi_parse_input_file() allocates SuperIndex storage from the untrusted wLongsPerEntry value but writes 16-byte entries regardless, causing an out-of-bounds heap write. Exploitation requires a user or consuming application to parse the file; the demonstrated consequence is a reliable process crash, not code execution.

The record

CVE
CVE-2025-70299
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-122, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record 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

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1204.002Malicious File

Public exploit references

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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