CVE-2026-0849
crypto: ATAES132A response length allows stack buffer overflow
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.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
crypto: ATAES132A response length allows stack buffer overflow
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.
- Record
CVE-2026-0849- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2026-12186
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.
- Record
EUVD-2026-12186- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-0849- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
OSV
crypto: ATAES132A response length allows stack buffer overflow
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.
- Record
CVE-2026-0849- CVSS 3.1
- 3.8 Low
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-0849 is a low vulnerability (CVSS 3.8) in Zephyrproject Zephyr, published March 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. No source names a fixed version.