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.
References
| Link | Resource |
|---|---|
| https://github.com/Wlz1112/WAVLINK-NU516U1-V260227/blob/main/Content-Length.md | Exploit Third Party Advisory |
| https://vuldb.com/?ctiid.353192 | Permissions Required VDB Entry |
| https://vuldb.com/?id.353192 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.776217 | Third Party Advisory VDB Entry |
Configurations
Configuration 1 (hide)
| AND |
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History
30 Apr 2026, 16:57
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:h:wavlink:wl-nu516u1:-:*:*:*:*:*:*:* cpe:2.3:o:wavlink:wl-nu516u1_firmware:m16u1_v260227:*:*:*:*:*:*:* |
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| First Time |
Wavlink wl-nu516u1 Firmware
Wavlink wl-nu516u1 Wavlink |
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| References | () https://github.com/Wlz1112/WAVLINK-NU516U1-V260227/blob/main/Content-Length.md - Exploit, Third Party Advisory | |
| References | () https://vuldb.com/?ctiid.353192 - Permissions Required, VDB Entry | |
| References | () https://vuldb.com/?id.353192 - Third Party Advisory, VDB Entry | |
| References | () https://vuldb.com/?submit.776217 - Third Party Advisory, VDB Entry |
30 Mar 2026, 13:26
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
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26 Mar 2026, 09:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-03-26 09:16
Updated : 2026-04-30 16:57
NVD link : CVE-2026-4861
Mitre link : CVE-2026-4861
CVE.ORG link : CVE-2026-4861
JSON object : View
Products Affected
wavlink
- wl-nu516u1
- wl-nu516u1_firmware