# lockedbyte/CVE-2021-40444

CVE-2021-40444 PoC

Repository: https://github.com/lockedbyte/CVE-2021-40444
Canonical: https://ross.abutalabs.com/products/cve-2021-40444
Language: HTML
License Family: other
Last push: 2021-12-25T18:31:02+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 1818, "days_push": 1712, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1800, forks 473 (observed 2026-08-28T04:05:37.962509+00:00)

## What it is
A proof-of-concept exploit generator for CVE-2021-40444, a Microsoft Office Word remote code execution vulnerability. It generates malicious DOCX documents embedding a supplied DLL payload and hosts the exploit files over HTTP for testing in a Windows VM.

## Use cases
- generate a malicious docx exploiting CVE-2021-40444
- test Office RCE payloads in an isolated Windows VM
- reproduce the in-the-wild CVE-2021-40444 attack sample
- host exploit cab and html files for a controlled exploit chain
- study how weaponized Office documents deliver DLL payloads

## When to choose
- you are a security researcher reproducing or analyzing CVE-2021-40444
- you need a ready-made PoC generator for Office document exploit testing
- you want to verify defenses against malicious DOCX/CAB exploit chains

## When to avoid
- you need a maintained, production-grade exploitation framework
- you want general-purpose malware analysis tooling rather than a single-CVE PoC
- your environment forbids offensive security tooling or the project's lack of a license is a concern

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: security, penetration-testing, reverse-engineering, cli
- domain: security, penetration-testing, reverse-engineering
- platform: python, cli
- tags: exploit, cve-2021-40444, poc, malicious-docx, microsoft-office, rce, weaponization, linux

## Member repositories
- lockedbyte/CVE-2021-40444 (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:37.962509+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:22:14.766692+00:00, confidence not recorded.
  - readme: https://github.com/lockedbyte/CVE-2021-40444 (fetched 2026-08-28T04:05:37.962509+00:00, sha 1cb72abeb528)
- Data as of 2026-08-30T08:39:29.467469+00:00.