CVE-2021-3319

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

0.88% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 58.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/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

2021-10-05 20:50Z5 YR AGO

Last updated

2024-09-16 22:14Z2 YR AGO

Reserved

2021-01-27

Assigning CNA

zephyr

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase
• CWE-588Attempt to Access Child of a Non-structure PointerVariant

Data version

5.1

Document digest

7a71d7a3fd004f4a386c40832c3abbc435a2ad7af0eb4b5d6b683bc652a73e80

• github.comhttp://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-94jg-2p6q-5364x_refsource_MISC