CVE-2026-12363

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-08-26.

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

2026-08-14 17:52Z2 MO AGO

Last updated

2026-08-14 19:26Z2 MO AGO

Reserved

2026-06-16

Assigning CNA

zephyr

Record state

PUBLISHED

Severity

Medium (CVSS 4.2)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

0f11db3cb2fd55948521ea7a82a5a6247cbbfa380948469355f71287633f4d07

• github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/452c704a28369236e555543c61a1894cd1a4afbbpatch
• github.comGHSA-fvm7-7whg-8gj6https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fvm7-7whg-8gj6