CVE-2026-45811
highpriority · track · 0EPSS 0.005 · 41 %ileEUUSEPSS · scored 2026-10-27
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Apache NimBLE. The HCI socket transport did not check whether a received HCI event would fit the configured event pool before copying it, allowing a buffer overflow. Severity is low: exploitation requires either a misconfigured pool size or a malicious/compromised controller on the other end of the HCI socket link, not over-the-air Bluetooth access. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
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references (8)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/07/24/11cnnvd
- https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41cnnvd
- https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0cnnvd
- https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41enisa_euvd
- https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0enisa_euvd
- http://www.openwall.com/lists/oss-security/2026/07/24/11Mailing ListThird Party Advisorynvd
- https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41Patchnvd
- https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0Mailing ListVendor Advisorynvd
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