Vulnerability · Published Jun 1, 2025 · Assigned by VulDB

CVE-2025-5408WAVLINK WL-WN576K1 HTTP POST Request login.cgi sys_login buffer overflow

Critical 9.8

In plain English

A critical-severity buffer overflow in QUANTUM D2G from WAVLINK. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.9%top 41.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in WAVLINK QUANTUM D2G, QUANTUM D3G, WL-WN530G3A, WL-WN530HG3, WL-WN532A3 and WL-WN576K1 up to V1410_240222 and classified as critical. Affected by this issue is the function sys_login of the file /cgi-bin/login.cgi of the component HTTP POST Request Handler. The manipulation of the argument login_page leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
WAVLINK	QUANTUM D2G	V1410_240222
WAVLINK	QUANTUM D3G	V1410_240222
WAVLINK	WL-WN530G3A	V1410_240222
WAVLINK	WL-WN530HG3	V1410_240222
WAVLINK	WL-WN532A3	V1410_240222
WAVLINK	WL-WN576K1	V1410_240222

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

VDB-310748 | WAVLINK WL-WN576K1 HTTP POST Request login.cgi sys_login buffer overflow vdb-entry, technical-description
VDB-310748 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #583486 | WAVLINK WL-WN532A3/WL-WN576K1/QUANTUM D3G/WL-WN530HG3/QUANTUM D2G/WL-WN530G3A <=V1410_240222 Buffer Overflow third-party-advisory
https://github.com/CH13hh/tmp_store_cc/blob/main/wavlink/1.md broken-link, exploit