CVE-2021-3454
Last modified
CVE-2021-3454 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Truncated L2CAP K-frame causes assertion failure. Zephyr versions >= 2.4.0, >= v.2.50 contain Improper Handling of Length Parameter Inconsistency (CWE-130), Reachable Assertion (CWE-617). EPSS estimates a 0.93% chance of exploitation in the next 30 days.
Description
Truncated L2CAP K-frame causes assertion failure. Zephyr versions >= 2.4.0, >= v.2.50 contain Improper Handling of Length Parameter Inconsistency (CWE-130), Reachable Assertion (CWE-617). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fx88-6c29-vrp3
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zephyrproject | Zephyr | >= 2.4.0, < 2.6.0 |
References
- http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fx88-6c29-vrp3Patch, Third Party Advisory
- http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fx88-6c29-vrp3Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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