Use After Free Vulnerability in CCExtractor by CCExtractor
CVE-2026-2889

4.8MEDIUM

Key Information:

Vendor

CCExtractor

Status
Ccextractor
Vendor
CVE Published:
21 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2889?

A vulnerability exists in CCExtractor up to version 0.96.5, specifically in the function processmp4 located in the library src/lib_ccx/mp4.c. This vulnerability can lead to a use after free condition, presenting a risk for exploitation given local access. The exploit has been made public, prompting an urgent need for users to upgrade to version 0.96.6, which contains the necessary patch. It is crucial for users to address this vulnerability to prevent potential unauthorized access and ensure the integrity of their systems.

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Deploy the Patch

Affected Version(s)

CCExtractor 0.96.0

CCExtractor 0.96.1

CCExtractor 0.96.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-2889 - Proof of Concept

References

https://vuldb.com/?id.347182
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347182
signaturepermissions-required
https://vuldb.com/?submit.755029
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oneafter (VulDB User)
JSON
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