CVE-2026-15315: Tapo C120 v1 and C200 v5 contain an improper authentication vulnerability within the login authentication verification…
CVE-2026-15315 · Severity: high · CVSS 8.8 · Published 2026-08-18
Tapo C120 v1 and C200 v5
contain an improper authentication vulnerability within the login
authentication verification module. An attacker on the local network can
exploit weaknesses in challenge parameter validation to bypass normal
authentication controls and obtain administrative session tokens.
Successful
exploitation may allow an attacker to subsequently execute privileged
management actions, enable unauthorized administrative access and temporary
disruption of device services, resulting in a denial-of-service (DoS)
condition.
No. Junglewise Threat Intelligence has no report of CVE-2026-15315 being exploited in the wild.
How severe is CVE-2026-15315?
High severity, with a CVSS score of 8.8, published 18 August 2026.
Which products and versions are affected?
TP-Link Tapo C120, TP-Link Tapo C200, TP-Link Tapo C120 Firmware, TP-Link Tapo C200 Firmware. The advisory does not name versions.
Is there a fix for CVE-2026-15315?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-15315?
Check whether you run TP-Link Tapo C120, TP-Link Tapo C200, TP-Link Tapo C120 Firmware or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.