Vulnerability · Published Mar 14, 2026 · Assigned by zephyr
CVE-2026-0849crypto: ATAES132A response length allows stack buffer overflow
Low 3.8
In plain English
A low-severity buffer overflow in Zephyr from zephyrproject-rtos. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)3.8Low
Exploit odds (30 days)0.2%top 83.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zephyrproject-rtos | Zephyr | * – before 4.4.0 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L