CVE-2025-70304Public exploit

Crash via unchecked VobSub packet size

Published Jan 15, 2026 · Updated Jan 15, 2026

Out-of-bounds read in GPAC 2.4.0 allows context-dependent attackers to crash GPAC via a crafted VobSub subtitle package. The VobSub demuxer accepts an attacker-controlled dsize without checking it against the packet allocation set by psize, so vobsub_get_subpic_duration reads beyond the heap buffer. A victim must open or process the malicious .idx/.sub pair; the demonstrated consequence is a process crash, not code execution or data exposure.

CVSS severity7.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in GPAC 2.4.0 allows context-dependent attackers to crash GPAC via a crafted VobSub subtitle package. The VobSub demuxer accepts an attacker-controlled dsize without checking it against the packet allocation set by psize, so vobsub_get_subpic_duration reads beyond the heap buffer. A victim must open or process the malicious .idx/.sub pair; the demonstrated consequence is a process crash, not code execution or data exposure.

The record

CVE
CVE-2025-70304
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1499.004
Attack vector
Unavailable
Privileges
Unavailable

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 vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

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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