Which products and versions are affected by CVE-2021-46422?

Affected: Sdt-Cs3b1 Firmware (Telesquare) versions 1.1.0. The full list is in the CVE brief.

Is CVE-2021-46422 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 6, 2022.

Is CVE-2021-46422 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-46422?

Public exploit code is available.

Is there a fix for CVE-2021-46422?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2021-46422 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2021-46422

CriticalExploitedPublic exploit

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.

Published Apr 27, 2022 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2021-46422 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Sdt-Cs3b1 Firmware (Telesquare).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 6, 2022. Public exploit code is available.
EPSS estimates a 94% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

94%

Higher than 99.8% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2021-46422 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

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.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Dec 6, 2022	n/a	Not reported
CIRCL KEV	Oct 14, 2023	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Sdt-Cs3b1 FirmwareTelesquare	1.1.0	n/a

Timeline

Publicly disclosed
Apr 27, 2022
Added to Industry KEV feed
Dec 6, 2022
Added to CIRCL KEV
Oct 14, 2023
Last updated
Nov 21, 2024

Weakness Type

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

9 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Sdt-Cs3b1 Firmware (Telesquare) versions 1.1.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 6, 2022.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2021-46422 Running On Your Attack Surface?

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