CVE-2026-75619: tp-link systems inc. tapo c100 v5 Heap-based Buffer Overflow

Vulnerability summary

CVE-2026-75619 is a medium (CVSS 6.9) Heap-based Buffer Overflow vulnerability in tp-link systems inc. tapo c100 v5. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.6% of scored vulnerabilities.

Timeline

1. 19-08-2026
   PublishedVulnerability first disclosed.
2. 27-08-2026
   Last modifiedVulnerability information updated.

Description

Tapo C100/C101 V5 contains a heap-based buffer overflow vulnerability in the RTSP service. An authenticated attacker on the local network can send specially crafted RTSP frame data containing oversized length values, resulting in out-of-bounds heap writes. Successful exploitation can crash the RTSP service and trigger a device reboot, resulting in a temporary denial-of-service condition.

• 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().