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CVE-2021-4043— NULL Pointer Dereference in gpac/gpac

Quick assessment

Affected
gpac gpac/gpac
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GPAC是一款开源的多媒体框架。 gpac 1.1.0之前版本存在代码问题漏洞，该漏洞源于软件中存在NULL指针解引用。

AI Predicted 5.3 Difficulty: Moderate EPSS 4.61% · P91

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-4043

Vulnerability Information
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Vulnerability Title
NULL Pointer Dereference in gpac/gpac
Source: CVE Program / CVE List V5
Vulnerability Description
NULL Pointer Dereference in GitHub repository gpac/gpac prior to 1.1.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
GPAC 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GPAC是一款开源的多媒体框架。 gpac 1.1.0之前版本存在代码问题漏洞，该漏洞源于软件中存在NULL指针解引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
gpac gpac/gpac unspecified ~ 1.1.0 -

II. Public POCs for CVE-2021-4043

# POC Description Source Link Shenlong Link
1 PwnKit-Hunter is here to help you check if your systems are vulnerable to CVE-2021-4043, a.k.a. PwnKit https://github.com/cyberark/PwnKit-Hunter POC Details
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III. Intelligence Information for CVE-2021-4043

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Patches & Fixes for CVE-2021-4043 (1)

Vendor Advisories for CVE-2021-4043 (2)

IV. Related Vulnerabilities

Same product: gpac/gpac
Same vendor: gpac
Same weakness: CWE-476

V. Comments for CVE-2021-4043

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