CVE-2026-13734

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

0.33% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 26.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-01.

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

2026-08-28 20:38Z2 MO AGO

Last updated

2026-09-01 12:26Z1 MO AGO

Reserved

2026-06-29

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-294Authentication Bypass by Capture-replayBase

Data version

5.2

Document digest

7ce781443a735f4a21e7ca0ccc5f5a32688e1275174ddb509ae4b85081a77428

• github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/260c32ef9a89824bd25e17170e77aa4b98c84069patch
• github.comGHSA-x7q7-fjx9-4vj2https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-x7q7-fjx9-4vj2