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Vulnerabilities ›

CVE-2026-4861

High

A weakness has been identified in Wavlink WL-NU516U1 260227. This vulnerability affects the function ftext of the file /cgi-bin/nas.cgi. This manipulation of the argument Content-Length causes stack-b

CWE-119 — Weakness Type

                    Published: Mar 26, 2026                      ·  Modified: Apr 2, 2026                      ·  Source: NVD                

CVSS v3

8.8

🔗 NVD Official

📄 Description (English)

A weakness has been identified in Wavlink WL-NU516U1 260227. This vulnerability affects the function ftext of the file /cgi-bin/nas.cgi. This manipulation of the argument Content-Length causes stack-based buffer overflow. The attack can be initiated remotely. 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.

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Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 4

https://github.com/Wlz1112/WAVLINK-NU516U1-V260227/blob/main/Content-Length.md

https://vuldb.com/?ctiid.353192

https://vuldb.com/?id.353192

https://vuldb.com/?submit.776217

📊 CVSS Score

8.8

/ 10.0 — High

📊 CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredL — Low / Local

User InteractionN — None / Network

ScopeU — Unchanged

ConfidentialityH — High

IntegrityH — High

AvailabilityH — High

📋 Quick Facts

Severity High

CVSS Score8.8

CWECWE-119

EPSS0.05%

Exploit No

Patch ✗ No

Published 2026-03-26

Source Feed nvd

🏷️ Tags

CWE-119

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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