CVE-2025-55847

Name: CVE-2025-55847
Creator: NVD / NIST
Published: 2025-09-26T18:15:36.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.92%

Last modified Jun 17, 2026

CVE-2025-55847 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Wavlink M86X3A_V240730 contains a buffer overflow vulnerability in the /cgi-bin/ExportAllSettings.cgi file. The vulnerability arises because the Cookie parameter does not properly validate the length of input data. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

Description

Wavlink M86X3A_V240730 contains a buffer overflow vulnerability in the /cgi-bin/ExportAllSettings.cgi file. The vulnerability arises because the Cookie parameter does not properly validate the length of input data. Attackers can exploit this to execute arbitrary code or cause a denial of service (DoS) on the system

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.92%

77.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions
Wavlink	Wl-Wn586x3a Firmware	m86x3a_v240730

References

https://github.com/meigui637/iot_zone/blob/main/%E6%A0%88%E6%BA%A2%E5%87%BA%E6%BC%8F%E6%B4%9E.mdExploit, Third Party Advisory

Timeline

Published: Sep 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-55847?

How severe is CVE-2025-55847?

CVE-2025-55847 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.

How do I fix CVE-2025-55847?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-55847?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST