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WatchlistCritical

CVE-2022-4223311n Firmware Authentication Bypass

Tenda 11N with firmware version V5.07.33_cn suffers from an Authentication Bypass vulnerability.

Published Oct 20, 2022 · Updated May 8, 2025

Key Facts

Patch in the next maintenance window
  • CVE-2022-42233 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting 11n Firmware (Tenda).
  • It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
  • EPSS estimates a 43% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

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)

43%

Higher than 98.7% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

39/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

1

Proof-of-concept links

In-the-wild evidence

0

Reports of active use

Description

Tenda 11N with firmware version V5.07.33_cn suffers from an Authentication Bypass vulnerability.

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
11n FirmwareTenda5.07.33_cnn/a

Timeline

  1. Publicly disclosed

    Oct 20, 2022

  2. Last updated

    May 8, 2025

Weakness Type

  • CWE-287 Improper Authentication

FAQ

Common Questions.

Is CVE-2022-42233 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.