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Description

A security flaw has been discovered in Wavlink WL-NU516U1 260515. This affects the function wlink_uci_set_value of the file /cgi-bin/adm.cgi. Performing a manipulation of the argument lan_ip results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. You should 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.

PUBLISHED Reserved 2026-07-12 | Published 2026-07-12 | Updated 2026-07-13 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

OS Command Injection

Command Injection

Product status

260515
affected

Timeline

2026-07-12:Advisory disclosed
2026-07-12:VulDB entry created
2026-07-12:VulDB entry last update

Credits

0xcc12138 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/377842 (VDB-377842 | Wavlink WL-NU516U1 adm.cgi wlink_uci_set_value os command injection) vdb-entry technical-description

vuldb.com/vuln/377842/cti (VDB-377842 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15513 (CVE-2026-15513 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/847517 (Submit #847517 | WAVLINK NU516U1 M16U1_V260515 OS Command Injection) third-party-advisory

github.com/0xcc12138/wavlink-nu516u1-csrf-command-injection- exploit

dl.wavlink.com/...-22-5ccde97-mt7628-squashfs-sysupgrade.bin patch

cve.org (CVE-2026-15513)

nvd.nist.gov (CVE-2026-15513)

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