THREATPORT/VULNERABILITY/CVE-2026-3662
MEDIUM SEVERITY

CVE-2026-3662

Wl Nu516u1 Firmware vulnerability

CVSS
4.7
EPSS
14.9%
EPSS pct
96th
Exploited
No known
A vulnerability has been found in Wavlink WL-NU516U1 240425. This vulnerability affects the function usb_p910 of the file /cgi-bin/adm.cgi. Such manipulation of the argument Pr_mode leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.
Affected vendor
Wavlink
Affected product
Wl Nu516u1 Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Weakness type (CWE)
Published
2026-03-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 14.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2026-3662

  • Confirm whether Wavlink Wl Nu516u1 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2026-3662.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2026-3662

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2026-3662 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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