01 Record
CVE-2026-18416
Out-of-bounds read in CoAP well-known-core Uri-Query href matching (match_path_uri)
LowPUBLISHEDCNA: zephyr
CNA base score3.7 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
02 Description
Out-of-bounds read in CoAP well-known-core Uri-Query href matching (match_path_uri)
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- 3.7 (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:N/A:L
- NVD analysis status
- Received. NVD last modified this record on 2026-09-28.
- 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
- 2026-09-28 20:00Z2 HR AGO
- Last updated
- 2026-09-28 20:00Z2 HR AGO
- Reserved
- 2026-07-30
- Assigning CNA
- zephyr
- Record state
- PUBLISHED
- Severity
- Low (CVSS 3.7)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.2
- Document digest
- b5ff675da42ad2a17378e8ffa3a06c0a1cb0adbf7c2fecf13b27238b8f57e1cd
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comFix commithttps://github.com/zephyrproject-rtos/zephyr/commit/ef5b303dc88fb5159850623a2b51b590c36fa5bc
- github.comGHSA-m3mv-vvm4-h58ghttps://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-m3mv-vvm4-h58g