GPAC 2.4.0 MP4 File uncv_parse_config heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in GPAC 2.4.0 and classified as critical. Affected by this vulnerability is the function uncv_parse_config of the component MP4 File Handler. This manipulation causes heap-based overflow. This vulnerability is tracked as CVE-2025-70303. The attack is restricted to local execution. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as problematic was found in GPAC 2.4.0. Affected by this vulnerability is the function uncv_parse_config of the component MP4 File Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect availability. The summary by CVE is:

A heap overflow in the uncv_parse_config() function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-70303 since 01/09/2026. The exploitation appears to be easy. Attacking locally is a requirement. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/09/2026 CVE reserved
01/15/2026 +6 days Advisory disclosed
01/15/2026 +0 days VulDB entry created
01/15/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2025-70303 (🔒)
GCVE (CVE): GCVE-0-2025-70303
GCVE (VulDB): GCVE-100-341407
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/15/2026 20:58
Changes: 01/15/2026 20:58 (57)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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