A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the asynchronous parsing of local video stream content due to
insufficient alignment and validation of buffer boundaries when processing streaming inputs.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.
Metrics
Affected Vendors & Products
References
History
Tue, 07 Apr 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Tp-link tapo C520ws
Tp-link tapo C520ws Firmware |
|
| CPEs | cpe:2.3:h:tp-link:tapo_c520ws:2.6:*:*:*:*:*:*:* cpe:2.3:o:tp-link:tapo_c520ws_firmware:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Tp-link tapo C520ws
Tp-link tapo C520ws Firmware |
|
| Metrics |
cvssV3_1
|
Fri, 03 Apr 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Tp-link
Tp-link tapo C520ws V2 |
|
| Vendors & Products |
Tp-link
Tp-link tapo C520ws V2 |
Thu, 02 Apr 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A heap-based buffer overflow vulnerability was identified in TP-Link Tapo C520WS v2.6 within the asynchronous parsing of local video stream content due to insufficient alignment and validation of buffer boundaries when processing streaming inputs.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. | |
| Title | Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in TP-Link Tapo C520WS | |
| Weaknesses | CWE-122 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: TPLink
Published: 2026-04-02T17:19:58.781Z
Updated: 2026-04-02T17:58:08.441Z
Reserved: 2026-03-25T18:54:03.343Z
Link: CVE-2026-34120
Updated: 2026-04-02T17:58:05.302Z
Status : Analyzed
Published: 2026-04-02T18:16:28.827
Modified: 2026-04-06T20:26:04.310
Link: CVE-2026-34120
No data.