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CVE-2025-55847

Wavlink Wl-wn586x3a Firmware buffer overflow

8.8 HIGHPublic exploitEPSS 2.04%
  1. Published26 Sept 2025

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

CVSS 3.1 breakdown

Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Wavlink Wl-wn586x3a Firmwarem86x3a_v240730

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-55847 being actively exploited?

CVE-2025-55847 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.04%.

How severe is CVE-2025-55847?

CVE-2025-55847 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 2.04% probability of exploitation.

Which products are affected by CVE-2025-55847?

Affected products include Wavlink Wl-wn586x3a Firmware.

How do I fix CVE-2025-55847?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-55847 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.