CVE-2025-4544: d-link di-8100

Vulnerability summary

CVE-2025-4544 is a high (CVSS 7.5) vulnerability in d-link di-8100. EPSS estimates a 11.82% chance of exploitation in the next 30 days, higher than 96% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 11-05-2025
   PublishedVulnerability first disclosed.
2. 12-05-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical. This issue affects some unknown processing of the file /ddos.asp of the component jhttpd. The manipulation of the argument def_max/def_time/def_tcp_max/def_tcp_time/def_udp_max/def_udp_time/def_icmp_max leads to stack-based buffer overflow. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult.

• 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-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).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.