CVE-2025-70298 – CVE-2025-70298 is an out-of-bounds read vulnera... (How to Fix)

📋 TL;DR

CVE-2025-70298 is an out-of-bounds read vulnerability in GPAC's OGG demuxer that could allow attackers to read sensitive memory contents or cause application crashes. This affects systems running GPAC v2.4.0 for multimedia processing. Attackers could exploit this by crafting malicious OGG files.

💻 Affected Systems

Products:

GPAC (Multimedia Framework)

Versions: v2.4.0

Operating Systems: Linux, Windows, macOS, BSD

Default Config Vulnerable: ⚠️ Yes

Notes: Any system using GPAC to parse OGG files is vulnerable. This includes media servers, streaming applications, and multimedia tools.

📦 What is this software?

Gpac by Gpac

View all CVEs affecting Gpac →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise if combined with other vulnerabilities, or sensitive memory disclosure including credentials and keys.

🟠

Likely Case

Application crash (denial of service) or limited memory disclosure from the GPAC process context.

🟢

If Mitigated

Application crash with no privilege escalation if proper sandboxing and memory protections are enabled.

🌐 Internet-Facing: MEDIUM - Requires processing malicious OGG files, which could be delivered via web uploads or media streaming.

🏢 Internal Only: LOW - Requires local file processing or internal media workflows to trigger.

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Proof of concept demonstrates reliable crash. Full weaponization for RCE would require additional exploitation techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: v2.4.1 or later

Vendor Advisory: https://github.com/gpac/gpac/security/advisories

Restart Required: Yes

Instructions:

1. Check current GPAC version: gpac -version
2. Download latest release from GitHub
3. Follow build/install instructions for your platform
4. Restart any services using GPAC

🔧 Temporary Workarounds

Disable OGG Processing

all

Temporarily disable OGG file processing in GPAC configuration

Edit GPAC configuration to remove OGG demuxer support

Input Validation

all

Implement file type validation before processing with GPAC

Use file command or magic numbers to validate OGG files before processing

🧯 If You Can't Patch

Implement strict input validation for all media files processed by GPAC
Run GPAC in sandboxed/containerized environments with minimal privileges

🔍 How to Verify

Check if Vulnerable:

Check if GPAC version is exactly 2.4.0: gpac -version 2>&1 | grep -i version

Check Version:

gpac -version 2>&1 | grep -i version

Verify Fix Applied:

Verify GPAC version is 2.4.1 or higher and test with known malicious OGG file

📡 Detection & Monitoring

Log Indicators:

GPAC segmentation faults
Memory access violation errors
Abnormal process termination

Network Indicators:

Unusual OGG file uploads to media processing endpoints
Repeated failed media processing attempts

SIEM Query:

process_name:"gpac" AND (event_type:"crash" OR signal:"SIGSEGV")

📊 Metadata

CVE ID: CVE-2025-70298

CVSS v3 Score: 8.2 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CWE: CWE-125

EPSS Score: 0.05% exploit probability (14.5th percentile)

Published: January 15, 2026

Last Updated: January 23, 2026

🔗 References

https://github.com/zakkanijia/POC/blob/main/dmx_ogg/GPAC_oggdmx_parse_tags_offbyone.md Exploit,Third Party Advisory

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🔗 Related Vulnerabilities

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