CVE-2024-21778: level1 wbr-6013_firmware Heap-based Buffer Overflow

Vulnerability summary

CVE-2024-21778 is a high (CVSS 7.2) Heap-based Buffer Overflow vulnerability in level1 wbr-6013_firmware. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.3% of scored vulnerabilities.

Timeline

1. 08-07-2024
   PublishedVulnerability first disclosed.
2. 04-11-2025
   Last modifiedVulnerability information updated.

Description

A heap-based buffer overflow vulnerability exists in the configuration file mib_init_value_array functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted .dat file can lead to arbitrary code execution. An attacker can upload a malicious file to trigger this vulnerability.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.