How severe is CVE-2023-2231?

CVE-2023-2231 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-2023-2231 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2231?

CVE-2023-2231 affects Max-tech Max-g866ac Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-2231?

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-2023-2231 published?

CVE-2023-2231 was published on 2023-04-21 and last updated on 2026-06-17.

CVE-2023-2231

CVE-2023-2231 is a critical-severity vulnerability in Max-tech Max-g866ac Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Max-tech Max-g866ac Firmware
Published: 2023-04-21
Last modified: 2026-06-17

Description

A vulnerability, which was classified as critical, was found in MAXTECH MAX-G866ac 0.4.1_TBRO_20160314. This affects an unknown part of the component Remote Management. The manipulation leads to missing authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-227001 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2023-2231?: A vulnerability, which was classified as critical, was found in MAXTECH MAX-G866ac 0.4.1_TBRO_20160314. This affects an unknown part of the component Remote Management. The manipulation leads to missing authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-227001 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2023-2231?: CVE-2023-2231 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-2023-2231 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2231?: CVE-2023-2231 affects Max-tech Max-g866ac Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-2231?: 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-2023-2231 published?: CVE-2023-2231 was published on 2023-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:max-tech:max-g866ac_firmware:0.4.1_tbro_20160314:*:*:*:*:*:*:*

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