How severe is CVE-2023-40193?

CVE-2023-40193 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40193 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40193?

CVE-2023-40193 affects Tp-link Deco M4 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40193?

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

When was CVE-2023-40193 published?

CVE-2023-40193 was published on 2023-09-06 and last updated on 2026-06-17.

CVE-2023-40193

CVE-2023-40193 is a high-severity vulnerability in Tp-link Deco M4 Firmware with a CVSS 3.x base score of 8.0. 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.0)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Tp-link Deco M4 Firmware
Published: 2023-09-06
Last modified: 2026-06-17

Description

Deco M4 firmware versions prior to 'Deco M4(JP)_V2_1.5.8 Build 20230619' allows a network-adjacent authenticated attacker to execute arbitrary OS commands.

Frequently asked questions

What is CVE-2023-40193?: Deco M4 firmware versions prior to 'Deco M4(JP)_V2_1.5.8 Build 20230619' allows a network-adjacent authenticated attacker to execute arbitrary OS commands.
How severe is CVE-2023-40193?: CVE-2023-40193 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40193 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40193?: CVE-2023-40193 affects Tp-link Deco M4 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40193?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-40193 published?: CVE-2023-40193 was published on 2023-09-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:deco_m4_firmware:*:*:*:*:*:*:*:*

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