Out-of-bounds Read in Apache Nimble
CVE-2025-53470
Out-of-bounds Read vulnerability in Apache NimBLE HCI H4 driver. Specially crafted HCI event could lead to invalid memory read in H4 driver. This issue affects Apache NimBLE: through 1.8. This issue requires a broken or bogus Bluetooth controller and thus severity is considered low. Users are recommended to upgrade to version 1.9, which fixes the issue.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
Weakness classification (CWE)
References
- github.com/apache/mynewt-nimble/commit/b973df0c6cf7b30efbf8eb2cafdc1ee843464b76 (Patch, patch)
- lists.apache.org/thread/32sm0944dyod4sdql77stgyw9xb2msc0 (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-53470?
- CVE-2025-53470 is a low-severity vulnerability in Apache Nimble, classified under Out-of-bounds Read. CVSS score: 3.1/10. Published 2026-01-10.
- How severe is CVE-2025-53470?
- Low severity. CVSS v3 base score is 3.1 out of 10.