CVE-2021-46422

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-04-28. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 95%
CISA-KEV: Not listedEPSS: 95%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
86(Track*)
EG Risk 86/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation95% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
99.8%
KEV
Not listed

Published

April 27, 2022

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jul 13, 2026
No patch confirmed yet.
generic

SDT-CW3B1 - Google Drive

https://drive.google.com/drive/folders/1YJlVlb4SlTEGONzIjiMwd2P7ucP_Pm7T?usp=sharing

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 12× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:06 UTCEG score recompute
  3. 2026-07-22 22:52 UTCEG score recompute
  4. 2026-07-18 10:02 UTCEPSS rescore
  5. 2026-07-15 01:58 UTCEPSS rescore
  6. 2026-07-15 01:58 UTCEPSS rescore
  7. 2026-07-13 06:11 UTCEPSS rescore
  8. 2026-07-13 06:11 UTCEPSS rescore
  9. 2026-07-01 15:04 UTCEPSS rescore
  10. 2026-06-30 23:20 UTCEPSS rescore
  11. 2026-06-28 04:54 UTCEPSS rescore
  12. 2026-06-28 04:54 UTCEPSS rescore
  13. 2026-06-23 21:31 UTCEPSS rescore
  14. 2026-06-23 21:31 UTCEPSS rescore
  15. 2026-06-16 17:51 UTCEPSS rescore
  16. 2026-06-15 17:46 UTCEPSS rescore
  17. 2026-06-12 23:10 UTCEPSS rescore
  18. 2026-06-11 13:58 UTCEPSS rescore
  19. 2026-06-10 13:20 UTCEPSS rescore
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-05-31 00:15 UTCEPSS rescore
  23. 2026-05-31 00:15 UTCEPSS rescore
  24. 2026-05-28 13:43 UTCEPSS rescore
  25. 2026-05-28 13:43 UTCEPSS rescore
Show 7 more
  1. 2026-05-26 13:43 UTCEPSS rescore
  2. 2026-05-26 13:42 UTCEPSS rescore
  3. 2026-05-26 07:17 UTCEPSS rescore
  4. 2026-05-26 07:17 UTCEPSS rescore
  5. 2026-05-25 23:08 UTCEG score recompute
  6. 2026-05-25 23:08 UTCGHSA enrichment
  7. 2026-05-25 06:07 UTCOSV refresh

Publicly available exploits

(6 references)

Working exploit code is in the public domain (3 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCyyqxi/CVE-2021-46422
    First seen Oct 16, 2022

    CVE-2021-46422poc

    Open source ↗
  • GitHub PoCAwei507/CVE-RCE
    First seen Oct 15, 2022

    CVE-2021-46422漏洞

    Open source ↗
  • GitHub PoCChocapikk/CVE-2021-46422
    First seen Jun 20, 2022

    Telesquare SDT-CW3B1 1.1.0 - OS Command Injection

    Open source ↗
  • Exploit-DBEDB-50948
    First seen Jun 3, 2022

    Telesquare SDT-CW3B1 1.1.0 - OS Command Injection

    Open source ↗
  • Exploit-DBEDB-50936
    First seen May 17, 2022

    SDT-CW3B1 1.1.0 - OS Command Injection

    Open source ↗
  • Nucleihttp/cves/2021/CVE-2021-46422.yaml
    First seen Jan 1, 2021

    SDT-CW3B1 1.1.0 - OS Command Injection

    Open source ↗

Frequently asked(5)

What is CVE-2021-46422?
CVE-2021-46422 is a critical vulnerability published on April 27, 2022. 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.
When was CVE-2021-46422 disclosed?
CVE-2021-46422 was first published in the National Vulnerability Database on April 27, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-46422 actively exploited?
CVE-2021-46422 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-46422?
CVE-2021-46422 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-46422?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46422, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2021-46422

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