CVE-2026-34118: tapo c520ws firmware before 1.2.4 (exclusive); +4 more affected products

CVE-2026-34118. CVSS 3.1 base score 6.5 (MEDIUM, NVD). EPSS 0.00516 (percentile 0.42692), scored 19-Oct-2026.

Affected technology

tapo c520ws firmware · before 1.2.4 (exclusive)
tp-link

Tapo C520WS v2.6 · 0 to before 1.2.4 Build 260326 Rel.24666n
TP-Link Systems Inc.

Tapo C100 v5 · 0 to before 1.5.4 Build 260528 Rel.11462n
TP Link Systems Inc.

Tapo C101 v5 · 0 to before 1.5.4 Build 260528 Rel.11462n
TP Link Systems Inc.

Tapo C210 v3 · 0 to before V3.6_1.2.7 Build 260818
TP Link Systems Inc.

Description’s affected range: v3.6 and C520WS v2.6 in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, due to ins

Component: HTTP POST

Attack conditions (Source advisory, CVSS 4.0): Adjacent network · No privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could disrupt service under the conditions described by the source. Source advisory’s CVSS 4.0 assessment (base score 7.1/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 20-Oct-2026 01:47 UTC

CWE: CWE-122
CCR priority: 26.1 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · NVD
EPSS: 0.00516 · percentile 0.42692 · 2026-10-19
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-20 01:44:01.123206+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-34118.html