# CVE-2026-15316: An improper input validation vulnerability in the configuration service for processing encrypted credential data has…

Source: https://junglewise.ai/threats/cve-2026-15316-an-improper-input-validation-vulnerability-in-the-configuration  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-18  
License: CC BY 4.0 with a link back

CVE-2026-15316 · Severity: medium · CVSS 6.5 · Published 2026-08-18

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.

Technologies: [TP-Link Tapo C200](https://junglewise.ai/threats/technologies/tapo-c200). Vendors: [TP-Link](https://junglewise.ai/threats/vendors/tp-link).

## Quick answers

**Is CVE-2026-15316 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15316 being exploited in the wild.

**How severe is CVE-2026-15316?** Medium severity, with a CVSS score of 6.5, published 18 August 2026.

**Which products and versions are affected?** TP-Link Tapo C200, TP-Link Tapo C200 Firmware. The advisory does not name versions.

**Is there a fix for CVE-2026-15316?** 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-2026-15316?** Check whether you run TP-Link Tapo C200 or TP-Link Tapo C200 Firmware. 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.

## Affected products

- TP-Link Tapo C200
- TP-Link Tapo C200 Firmware

## Related threats

- [TP-Link Tapo C120 v1 and C200 v5 NULL pointer dereference](https://junglewise.ai/threats/cve-2026-9032-tapo-c120-v1-and-c200-v5-contain-a-null-pointer-dereference-in-the)
- [TP-Link Tapo C120/C200 authentication bypass in HTTPS onboarding](https://junglewise.ai/threats/cve-2026-78578-tapo-c120-v1-and-c200-v5-do-not-enforce-authentication-for-do)
- [TP-Link Tapo C120 v1 and C200 V5 authentication bypass in onboarding scan](https://junglewise.ai/threats/cve-2026-78577-tapo-c120-v1-and-c200-v5-contain-a-vulnerability-in-the-https)
- [TP-Link Tapo C120 and C200 authentication bypass and command execution](https://junglewise.ai/threats/cve-2026-102369-tapo-c120-v1-and-c200-v5-do-not-adequately-protect-login)
- [Tapo C120 v1 and C200 v5 contain an improper authentication vulnerability within the login authentication verification…](https://junglewise.ai/threats/cve-2026-15315-tapo-c120-v1-and-c200-v5-contain-an-improper-authentication)