CVE-2025-51281: dlink di-8100_firmware Classic Buffer Overflow

Vulnerability summary

CVE-2025-51281 is a high (CVSS 7.0) Classic Buffer Overflow vulnerability in dlink di-8100_firmware. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 25-08-2025
   PublishedVulnerability first disclosed.
2. 25-08-2025
   Last modifiedVulnerability information updated.

Description

D-Link DI-8100 16.07.26A1 is vulnerable to Buffer Overflow via the en`, `val and id parameters in the qj_asp function. This vulnerability allows authenticated attackers to cause a Denial of Service (DoS) by sending crafted GET requests with overly long values for these parameters.

• 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.