{"id":"CVE-2026-0849","aliases":["EUVD-2026-12186","GHSA-ff4p-3ggg-prp6"],"status":"published","title":"crypto: ATAES132A response length allows stack buffer overflow","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.","severity":{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00273,"percentile":0.19926,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2026-03-14T21:05:36Z","modified":"2026-10-28T02:31:06Z","products":[{"vendor":"zephyrproject","product":"zephyr"},{"vendor":"zephyrproject-rtos","product":"zephyr"}],"references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-ff4p-3ggg-prp6","tags":["exploit","Exploit","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0849.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0849","tags":["advisory"]},{"url":"https://github.com/zephyrproject-rtos/zephyr","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-0849","title":"crypto: ATAES132A response length allows stack buffer overflow","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.","status":"published","published":"2026-03-14T21:05:36.954Z","modified":"2026-10-15T22:09:57.963Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:20:13.587351Z"}],"euvd":[{"id":"EUVD-2026-12186","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.","status":"published","published":"2026-03-14T21:05:36Z","modified":"2026-10-15T22:09:57Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"low"}],"updated_at":"2026-11-02T17:00:07.251605Z"}],"nvd":[{"id":"CVE-2026-0849","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.","status":"published","published":"2026-03-16T14:18:07.27Z","modified":"2026-10-15T22:19:12.15Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"low","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:12:09.358914Z"}],"osv":[{"id":"CVE-2026-0849","title":"crypto: ATAES132A response length allows stack buffer overflow","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.","status":"published","published":"2026-03-14T21:05:36.954Z","modified":"2026-10-28T02:31:06.113396064Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"low"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:44:53.490346Z"}]}}