synced 7 MIN AGO
01 Record

CVE-2026-12364

Missing user-space pointer validation in logging syscall z_log_msg_static_create allows kernel memory disclosure and denial of service

HighPUBLISHEDCNA: zephyr
CNA base score8.4 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

02 Description

Missing user-space pointer validation in logging syscall z_log_msg_static_create allows kernel memory disclosure and denial of service

03 Exploitation and scoring

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
0.15% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 5.0% of scored records. A rank, not a probability.
NVD base score
8.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
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.

04 Metadata

Published
2026-08-14 17:52Z2 MO AGO
Last updated
2026-08-14 19:23Z2 MO AGO
Reserved
2026-06-16
Assigning CNA
zephyr
Record state
PUBLISHED
Severity
High (CVSS 8.4)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
Weaknesses
  • CWE-822Untrusted Pointer DereferenceBase
Data version
5.2
Document digest
909e506e4567bdf2a211de423c9cd299a87248db89698e1bfb8f9d1fdf24a734

05 Affected products

VendorProductVersionsPlatforms
zephyrprojectzephyr2.6.0 to < 4.4.2—

06 References