CVE-2026-15315
Last modified
CVE-2026-15315 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tp-Link | Tapo C120 Firmware | < 1.9.3 |
| Tp-Link | Tapo C200 Firmware | < 1.4.6 |
References
- https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-NotesRelease Notes, Product
- https://www.tp-link.com/en/support/download/tapo-c200/v5/Product, Release Notes
- https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-NotesRelease Notes, Product
- https://www.tp-link.com/us/support/download/tapo-c200/v5/Product, Release Notes
- https://www.tp-link.com/us/support/faq/5248/Vendor Advisory, Patch
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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