Cyber Resilience

CVE-2021-3581

High

Published: 05 October 2021

Published
05 October 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 7.0 CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.0015 35.6th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3581 is a high-severity Buffer Access with Incorrect Length Value (CWE-805) vulnerability in Zephyrproject Zephyr. Its CVSS base score is 7.0 (High).

Operationally, ranked at the 35.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Buffer Access with Incorrect Length Value in zephyr. Zephyr versions >= >=2.5.0 contain Buffer Access with Incorrect Length Value (CWE-805). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8q65-5gqf-fmw5

CWE(s)
CWE-805CWE-1284

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

zephyrproject
zephyr
2.5.0 — 2.6.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References