How severe is CVE-2022-42233?

CVE-2022-42233 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-42233 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 43% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-42233?

CVE-2022-42233 affects Tenda 11n Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-42233?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-42233 published?

CVE-2022-42233 was published on 2022-10-20 and last updated on 2026-06-17.

CVE-2022-42233

CVE-2022-42233 is a critical-severity vulnerability in Tenda 11n Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 43% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 43% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Tenda 11n Firmware
Published: 2022-10-20
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2022-42233?: Tenda 11N with firmware version V5.07.33_cn suffers from an Authentication Bypass vulnerability.
How severe is CVE-2022-42233?: CVE-2022-42233 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-42233 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 43% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-42233?: CVE-2022-42233 affects Tenda 11n Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-42233?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-42233 published?: CVE-2022-42233 was published on 2022-10-20 and last updated on 2026-06-17.

References

https://github.com/D0ngsec/vulns/blob/main/Tenda/Tenda_11N_Authentication_Bypass.md

Affected products (1)

cpe:2.3:o:tenda:11n_firmware:5.07.33_cn:*:*:*:*:*:*:*

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CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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