CVE-2025-59452 Weak cryptography in YoLink API
YoLink API uses weak MD5 hashing of non-secret data for endpoint derivation, allowing attackers to bypass security controls and access device endpoints.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59452?
CVE-2025-59452 is a medium-severity vulnerability in YoSmart YoLink API, published on 6 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The YoSmart YoLink API through 2025-10-02 uses an endpoint URL that is derived from a device's MAC address along with an MD5 hash of non-secret information, such as a key that begins with cf50.
Weakness: CWE-340
Which versions are affected by CVE-2025-59452?
How do I fix CVE-2025-59452?
No fix has been published for CVE-2025-59452 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-59452 being exploited?
There is no known exploitation of CVE-2025-59452 in the wild and no public exploit code.
Sources
Also known as GHSA-ph5v-r485-jfgw.