CVE-2026-0849

MediumCVSS 6.8/10Last modified Oct 15, 2026

Description

Malformed ATAES132A responses with an oversized length field overflow a 52-byte stack buffer in the Zephyr crypto driver, allowing a compromised device or bus attacker to corrupt kernel memory and potentially hijack execution.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
zephyrproject-rtos	Zephyr	< 4.4.0

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6Exploit, Patch, Vendor Advisory
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6Exploit, Patch, Vendor Advisory

Timeline

Published: Mar 16, 2026
Last modified: Oct 15, 2026
NVD status: Analyzed

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