Cyber Resilience

CVE-2021-3436

MediumPublic PoC

Published: 05 October 2021

Published
05 October 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0032 55.0th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3436 is a medium-severity Use of Multiple Resources with Duplicate Identifier (CWE-694) vulnerability in Zephyrproject Zephyr. Its CVSS base score is 4.3 (Medium).

Operationally, ranked in the top 45.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

BT: Possible to overwrite an existing bond during keys distribution phase when the identity address of the bond is known. Zephyr versions >= 1.14.2, >= 2.4.0, >= 2.5.0 contain Use of Multiple Resources with Duplicate Identifier (CWE-694). For more information,…

more

see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-j76f-35mc-4h63

CWE(s)
CWE-694NVD-CWE-Other

Related Threats

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

Affected Assets

zephyrproject
zephyr
1.14.2, 2.4.0, 2.5.0

Mitigating Controls

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

References