← CVE Intelligence

CVE-2026-34119

Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS PUBLISHED

Description (CNA)

A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the HTTP parsing loop when appending segmented request bodies without continuous write‑boundary verification, due to insufficient boundary validation when handling externally supplied HTTP input.  An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.

Affected (CNA)

Vendor / productVersions
TP-Link Systems Inc. / Tapo C520WS v2.6affected 0 before 1.2.4 Build 260326 Rel.24666n

CWE

CWE-122

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.