Wavlink WL-NU516U1 adm.cgi sub_40785C stack-based overflow_CVE-2026-2565

7.5 / 10

HIGH

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Description

A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Basic Information

ID CVE-2026-2565

Source VulDB

Published Feb 16, 2026 at 16:32

Affected Product

Vendor Wavlink

Product WL-NU516U1

Version 20251208

Affected Versions Wavlink WL-NU516U1 20251208

CWE Classification

CWE-121 CWE-119

References

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    "lastseen": "",
    "description": "A weakness has been identified in Wavlink WL-NU516U1 20251208. Affected by this issue is the function sub_40785C of the file /cgi-bin/adm.cgi. This manipulation of the argument time_zone causes stack-based buffer overflow. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.",
    "published": "2026-02-16T16:32:06.693Z",
    "modified": "2026-02-16T16:32:06.693Z",
    "type": "cve",
    "title": "Wavlink WL-NU516U1 adm.cgi sub_40785C stack-based overflow",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.346172\nhttps://vuldb.com/?ctiid.346172\nhttps://vuldb.com/?submit.751133\nhttps://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/time_zone.md",
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    "sourceData": "Wavlink WL-NU516U1 20251208",
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    "cvss": {
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        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
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