What is CVE-2021-3322?

CVE-2021-3322 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2021-10-12.

How severe is CVE-2021-3322?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Zephyrproject Zephyr

CVE-2021-3322

Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3

EPSS: 0.005 (41.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zephyrproject Zephyr
Zephyrproject-rtos Zephyr — versions >=2.4.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

vulnerabilities@zephyrproject.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-3322?: CVE-2021-3322 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2021-10-12.
How severe is CVE-2021-3322?: Medium severity. CVSS v3 base score is 6.5 out of 10.