CVE-2026-3661

2.0 lowEPSS 18%

Low (2.0) in wavlink wl-nu516u1 firmware. EPSS 18% chance of exploitation in the next 30 days.

A flaw has been found in Wavlink WL-NU516U1 240425. This affects the function ota_new_upgrade of the file /cgi-bin/adm.cgi. This manipulation of the argument model causes command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure.

Severity

CVSS 4.0

2.0 low

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

7.2 high

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

EPSS: 18% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
CWEs: CWE-74, CWE-77
Published: 2026-03-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

wavlink:wl-nu516u1_firmware

References

https://github.com/jinhao118/cve/blob/main/WAVLINK_1.md
https://vuldb.com/?ctiid.349550
https://vuldb.com/?id.349550
https://vuldb.com/?submit.758227

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