CVE-2026-3612

HIGH 7.2

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

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	wavlink
Product	wl-nu516u1
Published	Mar 6, 2026
Last Updated	Mar 9, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Wavlink / WL-NU516U1

V240425

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.349220 vuldb.com: https://vuldb.com/?ctiid.349220 vuldb.com: https://vuldb.com/?submit.754668 github.com: https://github.com/Wlz1112/WAVLINK-NU516-V240425/blob/main/firmware_url.md

Credits

🔍 haimianbaobao (VulDB User) VulDB