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CRITICAL

CVE-2025-4340

CVSS v3

9.8

CRITICAL

EPSS Score

4.9 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability classified as critical has been found in D-Link DIR-890L and DIR-806A1 up to 100CNb11/108B03. Affected is the function sub_175C8 of the file /htdocs/soap.cgi. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Technical details

Published
2025-05-06

Frequently asked questions

What is CVE-2025-4340?

A vulnerability classified as critical has been found in D-Link DIR-890L and DIR-806A1 up to 100CNb11/108B03. Affected is the function sub_175C8 of the file /htdocs/soap.cgi. The manipulation leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Is CVE-2025-4340 actively exploited?

Active exploitation of CVE-2025-4340 has not been confirmed. Its EPSS score was 4.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-4340?

CVE-2025-4340 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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