CVE-2025-5408: wavlink quantum d2g

Vulnerability summary

CVE-2025-5408 is a high (CVSS 10.0) vulnerability in wavlink quantum d2g. EPSS estimates a 0.83% chance of exploitation in the next 30 days, higher than 57% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 01-06-2025
   PublishedVulnerability first disclosed.
2. 02-06-2025
   Last modifiedVulnerability information updated.

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.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.