01 Record
CVE-2026-19937
Bluetooth Mesh Access layer permanently leaks delayable-message contexts, disabling all model responses
MediumPUBLISHEDCNA: zephyr
CNA base score5.7 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
02 Description
Bluetooth Mesh Access layer permanently leaks delayable-message contexts, disabling all model responses
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
- 0.18% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 7.8% of scored records. A rank, not a probability.
- NVD base score
- 5.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-14.
- 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
- 2026-10-12 23:19Z16 DAYS AGO
- Last updated
- 2026-10-14 19:17Z14 DAYS AGO
- Reserved
- 2026-08-15
- Assigning CNA
- zephyr
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.7)
- CNA CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-772Missing Release of Resource after Effective LifetimeBase
- Data version
- 5.2
- Document digest
- 931df4a0b17b545096cae7e494a19b145839840ac14eddfb23cb08e43789d83e
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/097001f187ba2764e9ef1cc7113b8da525bf741c
- github.comGHSA-5rrx-xww6-5xrhhttps://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-5rrx-xww6-5xrh