CVE-2023-4683

MEDIUM

gpac < 2.3-dev - NULL Pointer Dereference

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-4683. PoCs published by Songg45.

AI-analyzed exploit summary This repository contains a functional PoC for CVE-2023-4683, a heap-buffer-overflow vulnerability in libwebp. It includes pre-crafted malicious WebP files and a setup script to compile a vulnerable version of libwebp with AddressSanitizer for testing.

Description

NULL Pointer Dereference in GitHub repository gpac/gpac prior to 2.3-DEV.

Exploits (1)

nomisec WORKING POC 1 stars
by Songg45 · poc
https://github.com/Songg45/CVE-2023-4683-Test

This repository contains a functional PoC for CVE-2023-4683, a heap-buffer-overflow vulnerability in libwebp. It includes pre-crafted malicious WebP files and a setup script to compile a vulnerable version of libwebp with AddressSanitizer for testing.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: libwebp (commit 7ba44f80f3b94fc0138db159afea770ef06532a0)
No auth needed
Prerequisites: Vulnerable version of libwebp · Ability to process crafted WebP files
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 5.5
EPSS 0.0030
EPSS Percentile 21.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (1)
gpac/gpac < 2.3-dev
Published Aug 31, 2023
Tracked Since Feb 18, 2026