CVE-2021-3431

BT: Assertion failure on repeated LL_FEATURE_REQ

Description

Assertion reachable with repeated LL_FEATURE_REQ. Zephyr versions >= v2.5.0 contain Reachable Assertion (CWE-617). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7548-5m6f-mqv9

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.15%
Vendor Advisory github.com
Affected: zephyrproject-rtos zephyr
Published at:
Updated at:

References

Link Tags
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7548-5m6f-mqv9 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3431?
CVE-2021-3431 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3431?
To fix CVE-2021-3431, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3431 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3431 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3431?
CVE-2021-3431 affects zephyrproject-rtos zephyr.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.