A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 03 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 03 Aug 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Wavlink wl-nu516u1
Vendors & Products Wavlink wl-nu516u1

Mon, 03 Aug 2026 06:45:00 +0000

Type Values Removed Values Added
Description A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Title Wavlink WL-NU516U1 nas.cgi fgets stack-based overflow
First Time appeared Wavlink
Wavlink wl-nu516u1 Firmware
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*
Vendors & Products Wavlink
Wavlink wl-nu516u1 Firmware
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:ND/RL:OF/RC:C'}

cvssV3_0

{'score': 9.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-03T15:03:20.669Z

Reserved: 2026-08-02T20:33:29.434Z

Link: CVE-2026-18588

cve-icon Vulnrichment

Updated: 2026-08-03T15:03:17.312Z

cve-icon NVD

Status : Deferred

Published: 2026-08-03T07:16:43.047

Modified: 2026-08-12T21:00:37.147

Link: CVE-2026-18588

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T08:45:03Z

Weaknesses