CVE-2026-15316CWE-20

CVE-2026-15316

Medium · published August 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
14.2
In the wild
Unconfirmed
What it is

An improper input

validation vulnerability in the configuration service for processing encrypted

credential data has been identified in Tapo C200 v5.  An attacker can send oversized crypted

ciphertext values that may trigger exception handling failures, due to insufficient

validation, causing the affected device to crash or restart.

Successful

exploitation may temporarily disrupt HTTPS management and monitoring

functionality, resulting in a denial-of-service (DoS) condition until the

service recovers.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · 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
EPSS
0.00239 · 14.2th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-08-19T02:16Z
Affected products (1)
ProductVersionsFixed in
tp-link/tapo_c200_firmware< 1.4.61.4.6
References (3)
EPSS history
Timeline
  • 18 AUG 21:25Z
    Denial-of-Service via Oversized Encrypted Credential Input in TP-Link Tapo C200
    cvelistv5