CVE-2026-18587

HIGH 7.5

Wavlink WL-NU516U1 Config Import os command injection

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

A flaw has been found in Wavlink WL-NU516U1 708c073-mt7628. The impacted element is an unknown function of the component Config Import. Executing a manipulation of the argument Password can lead to os command injection. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is regarded as difficult. The exploit has been published and may be used. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CWE	CWE-78 CWE-77
Vendor	wavlink
Product	wl-nu516u1
Published	Aug 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Wavlink / WL-NU516U1

708c073-mt7628

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/385415 vuldb.com: https://vuldb.com/vuln/385415/cti vuldb.com: https://vuldb.com/cve/CVE-2026-18587 vuldb.com: https://vuldb.com/submit/850494 github.com: https://github.com/oduoke567/WAVLINK-NU516U1-2026-05-1/blob/main/report.md dl.wavlink.com: https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-07-13-4b8a21f-mt7628-squashfs-sysupgrade.bin

Credits

🔍 oduoke (VulDB User) VulDB CNA Team