CVE-2026-45812 json
Apache NimBLE: OOB Read via sizeof(pointer) in Legacy Advertising Report Handler
published 2026-07-24 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-48585
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing Legacy Advertising Report HCI event.
When a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application.
Severity is low: NimBLE's own controller never batches multiple reports into one event, so this only matters when NimBLE's host is paired with a third-party controller that does.
This issue affects Apache NimBLE: through 1.9.0.
Users are recommended to upgrade to version 1.10.0, which fixes the issue.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Apache Software Foundation Apache NimBLE
Classification
- Weakness
-
- CWE-131 Incorrect Calculation of Buffer Size
References
-
github.com
/apache/mynewt-nimble/commit/605c7585408bc3674818eeb7b6f478a8aefe9746
patch
-
lists.apache.org
/thread/rll5m1ly2vg8jr76lp5ohrtspr5vlofy
vendor-advisory, mailing-list
-
openwall.com
/lists/oss-security/2026/07/24/12
mailing-list, third-party-advisory
Sources
- CVE List CVE-2026-45812
- NVD CVE-2026-45812
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