High 7.2Published Mar 5, 2026

CVE-2026-3612Wavlink WL-NU516U1 OTA Online Upgrade adm.cgi sub_405AF4 command injection

Updated under an hour ago (Oct 26, 2026, 4:23 PM ET)

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It affects Wavlink WL-NU516U1. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Wavlink WL-NU516U1

Exploited in the last 30 days

A vulnerability was determined in Wavlink WL-NU516U1 V240425. This affects the function sub_405AF4 of the file /cgi-bin/adm.cgi of the component OTA Online Upgrade. This manipulation of the argument firmware_url causes command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.

CVSS: 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-77, CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Mar 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Wavlink WL-NU516U1 wavlink:wl-nu516u1_firmware	V240425	CNA record
wavlink wl-nu516u1_firmware wavlink:wl-nu516u1_firmware	m16u1_v240425	NVD

References

References

https://vuldb.com/?id.349220	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.349220	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.754668	third-party-advisory, vdb-entry
https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/firmware_url.md	exploit, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.