Vulnerability · Published Oct 12, 2021 · Assigned by zephyr
CVE-2021-3322Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr
Medium 6.5
In plain English
A medium-severity null pointer dereference in zephyr from zephyrproject-rtos. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 54.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zephyrproject-rtos | zephyr | >=2.4.0 – before unspecified |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H