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CVE-2026-0849

crypto: ATAES132A response length allows stack buffer overflow

Published: Mar 14, 2026Updated: Apr 2, 2026 Sources: CVE List NVDCWE-120
NVD MITRE
3.8CVSSLOW
EPSS Score
0.2%
Top 85.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:PAC:HPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:PAttack Vector
Physical
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-120

Affected Products

Zephyrzephyrproject-rtos
On-premOS
Operating Systems / rtos-embedded-os
zephyrzephyrproject
On-premOS
Operating Systems / rtos-embedded-os
zephyrproject-rtososs-projectOperating Systemsaka zephyr
zephyrprojectoss-projectUSOperating Systemsaka zephyr

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6
github.com

Timeline

Published
Mar 14, 2026
Last Updated
Apr 2, 2026

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