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CVE-2026-18607

Wavlink NU516 lighttpd upload.cgi strcpy stack-based overflow

Published: Aug 3, 2026Updated: Aug 12, 2026 Sources: CVE List NVDCWE-119
8.8HIGH
NVD MITRE
EPSS Score
0.4%
Top 63.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

A security vulnerability has been detected in Wavlink WN572, WN570H, WN573, WN529, WN530, WN531, WN535, etc. WN529, WN530, WN531, WN535, WN536, WN551, WN557 and NU516 up to 20260609. Affected by this issue is the function strcpy of the file upload.cgi of the component lighttpd. The manipulation of the argument HTTP_COOKIE leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-119CWE-121

Affected Products

Wavlink
commercial·CN
WN572Embedded
Networking Infrastructure / router-switch
WN570HEmbedded
Networking Infrastructure / router-switch
WN573Embedded
Networking Infrastructure / router-switch
WN529Embedded
Networking Infrastructure / router-switch
WN530Embedded
Networking Infrastructure / router-switch
WN531Embedded
Networking Infrastructure / router-switch
WN535Embedded
Networking Infrastructure / router-switch
etc. WN529Embedded
Networking Infrastructure / router-switch
and 4 more affected products View all →

Exploitability

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

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://vuldb.com/vuln/385530
vuldb.com
https://vuldb.com/vuln/385530/cti
vuldb.com
https://vuldb.com/cve/CVE-2026-18607
vuldb.com
and 2 more references View all →

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