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CVE-2026-18590

Wavlink WL-NU516U1 Admin Password adm.cgi set_sys_adm os command injection

Published: Aug 3, 2026Updated: Aug 12, 2026 Sources: CVE List NVDCWE-77
6.3MEDIUM
NVD MITRE
EPSS Score
1.1%
Top 37.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

A vulnerability was determined in Wavlink WL-NU516U1 708c073-mt7628. Affected is the function set_sys_adm of the file adm.cgi of the component Admin Password Handler. This manipulation causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. It is suggested 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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-77CWE-78

Affected Products

Wavlink
commercial·CN
WL-NU516U1
Networking Infrastructure

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
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References

https://dl.wavlink.com/firmware/RD/WINSTAR_NU516U1-WO-A-2026-07-13-4b8a21f-mt7628-squashfs-sysupgrade.bin
dl.wavlink.com
https://github.com/oduoke567/WAVLINK-NU516U1-2026-05-1/blob/main/report2.md
github.com
https://vuldb.com/cve/CVE-2026-18590
vuldb.com
and 4 more references View all →

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