CVE-2025-56400
Published: 24 November 2025
Summary
CVE-2025-56400 is a high-severity CSRF (CWE-352) vulnerability in Tuya Smartlife. Its CVSS base score is 8.8 (High).
Operationally, ranked at the 5.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-198984
Vulnerability details
Cross-Site Request Forgery (CSRF) vulnerability in the OAuth implementation of the Tuya SDK 6.5.0 for Android and iOS, affects the Tuya Smart and Smartlife mobile applications, as well as other third-party applications that integrate the SDK, allows an attacker to…
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link their own Amazon Alexa account to a victim's Tuya account. The applications fail to validate the OAuth state parameter during the account linking flow, enabling a cross-site request forgery (CSRF)-like attack. By tricking the victim into clicking a crafted authorization link, an attacker can complete the OAuth flow on the victim's behalf, resulting in unauthorized Alexa access to the victim's Tuya-connected devices. This affects users regardless of prior Alexa linkage and does not require the Tuya application to be active at the time. Successful exploitation may allow remote control of devices such as cameras, doorbells, door locks, or alarms.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring user re-entry of credentials for sensitive actions prevents automated forgery of requests without active user participation.
Session termination after a set interval shortens the usable lifetime of a fixed session identifier, making successful exploitation of session fixation more difficult.
Awareness training educates users on avoiding untrusted links and actions that can be exploited via CSRF.
Security testing regimens explicitly include checks for missing or ineffective anti-CSRF protections in web applications.
Enforces proper session ID generation and binding, preventing fixation of a known session token.
Detects anomalous request patterns consistent with cross-site request forgery.