CVE-2026-15890

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

0.07% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-15.

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

2026-09-21 21:16Z1 MO AGO

Last updated

2026-10-15 22:10Z14 DAYS AGO

Reserved

2026-07-15

Assigning CNA

zephyr

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-323Reusing a Nonce, Key Pair in EncryptionBase
• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

ebc61a6eeebdef71a55859b22b756136f3fa7c3df5741ae743ec13617d112450

• github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/dc66397309248271df1fd0131d68ce8ea62bf91bpatch
• github.comGHSA-23jw-7xv2-xr28https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-23jw-7xv2-xr28