CVE-2025-60331: dlink dir-823g_firmware Stack-based Buffer Overflow

Vulnerability summary

CVE-2025-60331 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in dlink dir-823g_firmware. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 22-10-2025
   PublishedVulnerability first disclosed.
2. 23-10-2025
   Last modifiedVulnerability information updated.

Description

D-Link DIR-823G A1 v1.0.2B05 was discovered to contain a buffer overflow in the FillMacCloneMac parameter in the /EXCU_SHELL endpoint. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).