CVE-2026-34118

HIGH
MEDIUM Priority: 0.03 BB Relevance: 59/100
Published: 2026-04-02 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: X
AT: None
VC: None
VI: None
VA: High

Description

A heap-based buffer overflow vulnerability was identified in multiple TP-Link Tapo cameras in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, 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 Software (7)

VendorProductVersion
TP Link Systems Inc. Tapo C100 v5 0 < 1.5.4 Build 260528 Rel.11462n
TP Link Systems Inc. Tapo C101 v5 0 < 1.5.4 Build 260528 Rel.11462n
TP Link Systems Inc. Tapo C200 v3 0 < 1.9.2 Build 261009 Rel.61408n
TP Link Systems Inc. Tapo C210 v3 0 < V3.6_1.2.7 Build 260818
TP Link Systems Inc. Tapo TC70 v3 0 < 1.9.2 Build 261009 Rel.61408n
TP-Link Systems Inc. Tapo C520WS v2.6 0 < 1.2.4 Build 260326 Rel.24666n
tp-link tapo_c520ws_firmware < 1.2.4

Bug Bounty Relevance

59 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.45%
Raw Score 0.004520
Percentile 39.4%
Date 2026-11-05

EPSS Trend

2026-11-05
0.00452
2026-11-04
0.00452
2026-11-03
0.00452
2026-11-02
0.00389

Intelligence Sources

mitre ref →
nvd ref →