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Vulnerability Intelligence

CVE-2026-3661 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-3661

CVE-2026-3661

MEDIUM5.1

Wavlink WL-NU516U1 adm.cgi ota_new_upgrade command injection

Published Mar 7, 2026

Modified 5 days ago

Details

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.

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

https://www.cve.org/CVERecord?id=CVE-2026-3661

CVSS Analysis

CVSS v4.0

5.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

HighPR:H

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

LowVC:L

Vuln. Integrity

LowVI:L

Vuln. Availability

LowVA:L

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

5.1/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

Weakness Type (CWE)

Input Validation

Command Injection

Ecosystems

Timeline

PublishedMar 7, 2026

ModifiedMar 11, 2026