Telenot · Telenot Compasx · CVE-2021-34600
**Name of the Vulnerable Software and Affected Versions**
Telenot CompasX versions prior to 32.0
**Description**
The issue is related to the use of a weak seed for random number generation, which leads to predictable AES keys used in NFC tags for local authorization of users. This may result in the total loss of trustworthiness of the installation.
**Recommendations**
For versions prior to 32.0, update to version 32.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of NFC tags for authorization until a patch is available.