{"id":"CVE-2026-0849","title":"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.","summary":"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.","severity":"low","cvss":3.8,"cvssVector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-120"],"vendor":"zephyrproject","product":"zephyr","affected":["zephyr = 4.3.0"],"published":"2026-03-16","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:19:12.150","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-0849","references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6","label":"vulnerabilities@zephyrproject.org"},{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00244,"epssPercentile":0.15568,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-03-17T15:04:55.949281Z"},"ingestedAt":"2026-10-15T22:48:25.564Z","slug":"CVE-2026-0849","body":"## Overview\n\nMalformed 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.\n\n## Affected\n\n- `zephyr = 4.3.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":33,"depthScoreParts":{"impact":20.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}