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CVE-2026-13539

HIGH
8.8
CVSS 3.1
Description
A vulnerability was identified in Wavlink WL-NU516U1-A M16U1_V240425. The impacted element is the function sub_407504 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. Such manipulation of the argument Guest_ssid leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. It is suggested to 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.

Metadata

CVE ID
CVE-2026-13539
State
PUBLISHED
Assigner
VulDB
Reserved
2026-06-28 10:01 UTC
Published
2026-06-29 05:30 UTC
Last updated
2026-06-29 05:30 UTC
Primary CWE
CWE-121
Stack-based Buffer Overflow
Vendor / Product
Wavlink / WL-NU516U1-A
Sources
cve.org  ·  NVD

Severity & Metrics

8.8 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Affected products (1)
VendorProductPlatformVersions
Wavlink WL-NU516U1-A — M16U1_V240425
Weakness (CWE)
CWESourceDescription
CWE-119 cna Memory Corruption
CWE-121 cna Stack-based Buffer Overflow
CVSS scores (4)
ScoreSeverityVersionSourceVector
9.0 N/D 2.0 cna AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:OF/RC:C
8.8 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
8.8 HIGH 3.0 cna CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
8.7 HIGH 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
References (6)
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