CVE-2021-41061

Name: CVE-2021-41061
Creator: NVD / NIST
Published: 2021-09-15T12:15:16.753+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.20%

Last modified Jun 17, 2026

CVE-2021-41061 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In RIOT-OS 2021.01, nonce reuse in 802.15.4 encryption in the ieee820154_security component allows attackers to break encryption by triggering reboots.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

In RIOT-OS 2021.01, nonce reuse in 802.15.4 encryption in the ieee820154_security component allows attackers to break encryption by triggering reboots.

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

0.20%

10.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-330

Affected Software

Vendor	Product	Versions
Riot-Os	Riot	2021.01

References

https://github.com/RIOT-OS/RIOT/issues/16844Exploit, Issue Tracking, Third Party Advisory
https://github.com/RIOT-OS/RIOT/issues/16844Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Sep 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41061?

In RIOT-OS 2021.01, nonce reuse in 802.15.4 encryption in the ieee820154_security component allows attackers to break encryption by triggering reboots.

How severe is CVE-2021-41061?

CVE-2021-41061 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41061?

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-2021-41061?

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

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Source: NVD / NIST