Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-0849 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:3.8 LOWVector:CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6	CISA-ADP	ExploitPatchVendor Advisory
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6	[email protected]	ExploitPatchVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')	[email protected]

Affected Products

Product	Versions
zephyrproject zephyr	4.3.0 - 4.3.0 rc1 4.3.0 rc2 4.3.0 rc3
CPE cpe:2.3:o:zephyrproject:zephyr:4.3.0:-:::::: cpe:2.3:o:zephyrproject:zephyr:4.3.0:rc1:::::: cpe:2.3:o:zephyrproject:zephyr:4.3.0:rc2:::::: cpe:2.3:o:zephyrproject:zephyr:4.3.0:rc3:::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 2, 2026	Initial Analysis	[email protected]
Mar 17, 2026	CVE Modified	CISA-ADP
Mar 16, 2026	New CVE Received	[email protected]