A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS)… (CVE-2025-55640)
Description
A heap buffer overflow vulnerability exists in the stbl_AddSize function of GPAC MP4Box version 2.4. This flaw can be triggered by processing a specially crafted MP4 file, leading to a denial of service (DoS) condition.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability is a heap buffer overflow in the stbl_AddSize function located in isomedia/stbl_write.c of GPAC MP4Box version 2.4. An attacker can exploit this by supplying a crafted MP4 file, causing the application to crash or become unavailable due to memory corruption. No further technical details or exploitation methods are provided.
Potential Impact
Successful exploitation results in a denial of service by crashing the application or causing it to become unresponsive. There is no information about code execution or data corruption beyond the DoS impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9g23-86wf-5x87
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-55640"]
- State
- PUBLISHED
Threat ID: 6ad2aedb2cdf04f656454bba
Added to database: 10/16/2026, 23:10:19 UTC
Last enriched: 10/16/2026, 23:12:51 UTC
Last updated: 10/17/2026, 01:48:08 UTC
Views: 2
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