CVE-2026-13538

MEDIUM

Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_401D68 command injection

Title source: cna
STIX 2.1

Description

A vulnerability was determined in Wavlink WL-NU516U1-A M16U1_V240425. The affected element is the function sub_401D68 of the file /cgi-bin/wireless.cgi of the component POST Parameter Handler. This manipulation of the argument SSID2G2/SSID5G2/AuthMethod2/WPAPSK12 causes command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

References (10)

Core 10
Core References
Signature, Permissions Required signature permissions-required
VDB-374546 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/374546/cti
Vdb Entry, Technical Description vdb-entry technical-description
VDB-374546 | Wavlink WL-NU516U1-A POST Parameter wireless.cgi sub_401D68 command injection
https://vuldb.com/vuln/374546
Third Party Advisory third-party-advisory
CVE-2026-13538 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-13538
Third Party Advisory third-party-advisory
Submit #834019 | Wavlink WL-NU516U1-A M16U1_V240425 Command Injection
https://vuldb.com/submit/834019
Third Party Advisory third-party-advisory
Submit #834021 | Wavlink WL-NU516U1-A M16U1_V240425 Command Injection (Duplicate)
https://vuldb.com/submit/834021
Third Party Advisory third-party-advisory
Submit #834022 | Wavlink WL-NU516U1-A M16U1_V240425 Command Injection (Duplicate)
https://vuldb.com/submit/834022
Third Party Advisory third-party-advisory
Submit #834023 | Wavlink WL-NU516U1-A M16U1_V240425 Command Injection (Duplicate)
https://vuldb.com/submit/834023

Scores

CVSS v3 6.3
EPSS 0.0131
EPSS Percentile 67.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-74 CWE-77
Status published
Products (1)
Wavlink/WL-NU516U1-A M16U1_V240425
Published Jun 29, 2026
Tracked Since Jun 29, 2026