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CVE-2026-45811— Apache NimBLE: Buffer overflow in socket HCI transport

Quick assessment

Affected
Apache Software Foundation Apache NimBLE
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache nimble是美国Apache基金会开源的一个分布式数据库引擎。 Apache NimBLE 1.9.0及之前版本存在缓冲区错误漏洞，该漏洞源于缓冲区复制未检查输入大小，HCI socket传输未检查接收到的HCI事件是否适合配置的事件池即进行复制，可能导致缓冲区溢出。

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.34% · P28

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache NimBLE ≤ 1.9.0 affected
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I. Basic Information for CVE-2026-45811

Vulnerability Information
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Vulnerability Title
Apache NimBLE: Buffer overflow in socket HCI transport
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache NimBLE 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache nimble是美国Apache基金会开源的一个分布式数据库引擎。 Apache NimBLE 1.9.0及之前版本存在缓冲区错误漏洞，该漏洞源于缓冲区复制未检查输入大小，HCI socket传输未检查接收到的HCI事件是否适合配置的事件池即进行复制，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache NimBLE 0 ~ 1.9.0 -

II. Public POCs for CVE-2026-45811

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III. Intelligence Information for CVE-2026-45811

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Patches & Fixes for CVE-2026-45811 (1)

Mailing List Discussions for CVE-2026-45811 (1)

Same Patch Batch · Apache Software Foundation · 2026-07-24 · 11 CVEs total

CVE-2026-49326 Apache HBase: Missing scanner instance owner check in thrift delegation service
CVE-2026-46452 Apache NimBLE: Mesh Proxy SAR reassembly unbounded append and unchecked failure
CVE-2026-45816 Apache NimBLE: NULL pointer dereference vulnerability in SMP LTK request
CVE-2026-45815 Apache NimBLE: Remote reachable assertion in ATT Read Multiple Variable Response handler
CVE-2026-45813 Apache NimBLE: Incorrect data validation in BASS add/modify source operation
CVE-2026-45812 Apache NimBLE: OOB Read via sizeof(pointer) in Legacy Advertising Report Handler
CVE-2026-66144 Apache Neethi: Remote PolicyReference fetch lacks resource bounds
CVE-2026-66143 Apache Neethi: Missing global alternative-output budget across policy computation paths
CVE-2026-66142 Apache Neethi: Uncontrolled recursion in policy processing
CVE-2026-63317 Apache OpenNLP: Arbitrary Class Instantiation in GeneratorFactory via Feature Descriptor X

IV. Related Vulnerabilities

Same product: Apache NimBLE
Same vendor: Apache Software Foundation
Same weakness: CWE-120

V. Comments for CVE-2026-45811

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