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.
- 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
06 References
- github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/77aa26d8b940f39778154f02563caf15d02efdac
- github.comGHSA-h7rf-g9mg-g23fhttps://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-h7rf-g9mg-g23f