# CVE-2021-46422

> As of 2024-08-04, CVE-2021-46422 is a vulnerability, EPSS 94.4% (99.8th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2021-46422, most recently “Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices”.

**Last updated:** 2024-08-04

## What is CVE-2021-46422?

Telesquare SDT-CW3B1 1.1.0 is affected by an OS command injection vulnerability that allows a remote attacker to execute OS commands without any authentication.

The identifier was first published 1627 days ago.

## Severity and exploitation probability

- **EPSS (FIRST):** 94.4% probability of exploitation in the next 30 days, higher than 99.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 6.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2022-04-27, last modified 2024-08-04

## Is CVE-2021-46422 being exploited?

Weaponised exploit code for CVE-2021-46422 is publicly available. 11 public proof-of-concept repositories are tracked for this identifier. A ProjectDiscovery Nuclei detection template exists (`http/cves/2021/CVE-2021-46422.yaml`). It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.

- [Awei507/CVE-RCE](https://github.com/Awei507/CVE-RCE) (github)
- [Chocapikk/CVE-2021-46422](https://github.com/Chocapikk/CVE-2021-46422) (github)
- [yyqxi/CVE-2021-46422](https://github.com/yyqxi/CVE-2021-46422) (github)
- [nobodyatall648/CVE-2021-46422](https://github.com/nobodyatall648/CVE-2021-46422) (github)
- [xanszZZ/SDT_CW3B1_rce](https://github.com/xanszZZ/SDT_CW3B1_rce) (github)
- [latings/CVE-2021-46422](https://github.com/latings/CVE-2021-46422) (github)
- [polerstar/CVE-2021-46422-poc](https://github.com/polerstar/CVE-2021-46422-poc) (github)
- [kailing0220/CVE-2021-46422](https://github.com/kailing0220/CVE-2021-46422) (github)

## Affected products and versions

No affected-product or package list has been recorded for CVE-2021-46422 in the tracked sources. The vendor advisory and the references below are the authoritative statement of what is affected.

## How to fix CVE-2021-46422

No vendor patch reference has been recorded for CVE-2021-46422 in the tracked sources. Follow the references below for a fix, and treat any affected deployment as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2021-46422

1 tracked threat in the Threadlinqs corpus references CVE-2021-46422, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Evooo1Bot: Multi-Functional Mirai-Based Linux Botnet Exploiting 18 Known CVEs in Internet-Facing Devices](https://intel.threadlinqs.com/threat/TL-2026-3062) — HIGH · 2026-10-09

## Sources

Enriched from CVE.org, FIRST EPSS, public proof-of-concept repositories, ProjectDiscovery Nuclei. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [drive.google.com](https://drive.google.com/drive/folders/1YJlVlb4SlTEGONzIjiMwd2P7ucP_Pm7T?usp=sharing)
- [packetstormsecurity.com](http://packetstormsecurity.com/files/167201/SDT-CW3B1-1.1.0-Command-Injection.html)
- [packetstormsecurity.com (Telesquare SDT CW3B1 1.1.0 Command Injec)](http://packetstormsecurity.com/files/167387/Telesquare-SDT-CW3B1-1.1.0-Command-Injection.html)

Canonical: https://intel.threadlinqs.com/cve/CVE-2021-46422
Full detection coverage and IOCs for threats exploiting CVE-2021-46422 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp