What’s Vulnerable › Vulnerabilities

CVE-2026-105810: Authenticated Local Stack Overflow in TP-Link Tapo C320WS

• Severity: high (CVSS 8.5 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-19 · updated 2026-10-20
• Weakness: CWE-121

Description

Tapo C320WS V2.0 contains an authenticated stack-based buffer overflow in the local onboarding Wi-Fi configuration path. An authenticated attacker on the adjacent network can submit a crafted request containing an oversized encrypted password field, overwrite stack state, and execute commands with root privileges. Successful exploitation may allow an authenticated adjacent-network attacker to take control of the affected camera, modify camera behavior, access sensitive local configuration, and disrupt device availability.

Affected products

• TP-Link Systems Inc. Tapo C320WS v2: before 1.6.6 Build 260917 Rel.81089n — fixed in 1.6.6 Build 260917 Rel.81089n

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Tapo C320WS v2 1.6.6 Build 260917 Rel.81089n. Check the vendor advisory for mitigations.

References

• https://www.tp-link.com/en/support/download/tapo-c320ws/v2/#Firmware-Release-Notes
• https://www.tp-link.com/us/support/download/tapo-c320ws/#Firmware-Release-Notes
• https://www.tp-link.com/us/support/faq/5351/

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