CVE-2021-3330

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 46.7% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-10-12 21:50Z4 YR AGO

Last updated

2024-09-17 01:00Z1 YR AGO

Reserved

2021-01-27

Assigning CNA

zephyr

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

84a9d486f6e7af8c3a44996a8f9e9786040ddc7168387996ceb4a7c16b9d2529

• github.comhttp://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fj4r-373f-9456x_refsource_MISC