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CVE-2022-41741 is a memory-corruption vulnerability in NGINX's ngx_http_mp4_module. It affects NGINX Open Source releases before 1.23.2 and 1.22.1, NGINX Open Source Subscription releases before R2 P1 and R1 P1, and NGINX Plus releases before R27 P1 and R26 P1. A local attacker able to cause the module to process a specially crafted audio or video file may corrupt NGINX worker memory.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository provides a proof-of-concept (PoC) exploit for CVE-2022-41741, an out-of-bounds read vulnerability in nginx's ngx_http_mp4_module. The structure includes two main Python scripts: 'mp4.py' for generating a standard MP4 file, and 'evilmp4.py' for modifying this file to create a malformed MP4 with an oversized atom size. This malformed file is intended to be served by an nginx server with the vulnerable module enabled, potentially causing information disclosure or denial of service. The repository also includes documentation (README.md, usage.md) and a requirements file for dependencies. The exploit is educational and intended for security testing, not weaponized use. No hardcoded network endpoints are present; the attack vector is network-based, targeting servers that process the crafted MP4 file.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Important-severity local vulnerability affecting the Alma Linux 9.2 package set covered by advisory CLSA-2025-1753. Successful exploitation requires local access and low privileges and can result in high confidentiality, integrity, and availability impact.
A specific known vulnerability affecting the outdated nginx 1.6.1 component included in the Lantronix EDS-MD firmware.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.