CVE-2021-34600

Name: CVE-2021-34600
Creator: NVD / NIST
Published: 2022-01-20T12:15:08.24+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2021-34600 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.41%

33.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Telenot	Compasx	< 32.0

References

https://www.x41-dsec.de/lab/advisories/x41-2021-003-telenot-complex-insecure-keygen/Exploit, Third Party Advisory
https://www.x41-dsec.de/lab/advisories/x41-2021-003-telenot-complex-insecure-keygen/Exploit, Third Party Advisory

Timeline

Published: Jan 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-34600?

How severe is CVE-2021-34600?

CVE-2021-34600 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2021-34600?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-34600?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST