CVE-2026-2567Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow
Updated under an hour ago ()
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It affects Wavlink WL-NU516U1. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-121, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Analyzed
- Record last updated
- Feb 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Wavlink WL-NU516U1 wavlink:wl-nu516u1_firmware | 20251208 | CNA record |
wavlink wl-nu516u1_firmware wavlink:wl-nu516u1_firmware | through 2025-12-08 | NVD |
References
- https://vuldb.com/?id.346174vdb-entry, technical-description, third-party-advisory
- https://vuldb.com/?ctiid.346174signature, permissions-required, vdb-entry
- https://vuldb.com/?submit.752016third-party-advisory, vdb-entry
- https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/nas.cgi_User1Passwd.mdexploit, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.