What’s Vulnerable › Vulnerabilities

CVE-2026-2567: Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-02-16 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Performing a manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

Affected products

• Wavlink NU516U1: through 2025-12-08

References

• https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/nas.cgi_User1Passwd.md
• https://vuldb.com/?ctiid.346174
• https://vuldb.com/?id.346174
• https://vuldb.com/?submit.752016

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