CVE-2026-2566
Last modified
CVE-2026-2566 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. EPSS estimates a 0.47% chance of exploitation in the next 30 days.
Description
A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-2566?
How severe is CVE-2026-2566?
How do I fix CVE-2026-2566?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-25654A vulnerability has been identified in SINEC NMS (All versio…8.8
- CVE-2026-25655A vulnerability has been identified in SINEC NMS (All versio…8.5
- CVE-2026-25656A vulnerability has been identified in SINEC NMS (All versio…8.5
- CVE-2026-25657Ericsson Packet Core Gateway (PCG) versions prior to 1.30 co…6.5
- CVE-2026-25658Ericsson Packet Core Gateway (PCG) versions prior to 1.30 co…6.5
- CVE-2026-25659Ericsson Packet Core Gateway (PCG) versions prior to 1.30 co…6.5
- CVE-2026-25660CodeChecker is an analyzer tooling, defect database and view…9.8
- CVE-2026-25667ASP.NET Core Kestrel in Microsoft .NET 8.0 before 8.0.22 and…7.5
- CVE-2026-2567A vulnerability was detected in Wavlink WL-NU516U1 20251208.…7.3
- CVE-2026-25673An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.…7.5
- CVE-2026-25674An issue was discovered in 6.0 before 6.0.3, 5.2 before 5.2.…3.7
- CVE-2026-25676The installer of M-Track Duo HD version 1.0.0 contains an is…7.8
Are you affected by CVE-2026-2566?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST