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Vulnerability Details :

CVE-2026-45811

Summary
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At-24 Jul, 2026 | 12:09
Updated At-24 Jul, 2026 | 18:14
Rejected At-
Credits

Apache NimBLE: Buffer overflow in socket HCI transport

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:apache
Assigner Org ID:f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At:24 Jul, 2026 | 12:09
Updated At:24 Jul, 2026 | 18:14
Rejected At:
â–¼CVE Numbering Authority (CNA)
Apache NimBLE: Buffer overflow in socket HCI transport

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.

Affected Products
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache NimBLE
Default Status
unaffected
Versions
Affected
  • From 0 through 1.9.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-120CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Type: CWE
CWE ID: CWE-120
Description: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Textual description of severity
text:
low
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

reporter
Yicheng Yang, Secsys Lab, Fudan University
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41
patch
https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0
vendor-advisory
Hyperlink: https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41
Resource:
patch
Hyperlink: https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0
Resource:
vendor-advisory
â–¼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2026/07/24/11
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2026/07/24/11
Resource: N/A
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@apache.org
Published At:24 Jul, 2026 | 13:18
Updated At:27 Jul, 2026 | 14:41

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.5HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches

The Apache Software Foundation
apache
>>nimble>>Versions before 1.10.0(exclusive)
cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-120Secondarysecurity@apache.org
CWE ID: CWE-120
Type: Secondary
Source: security@apache.org
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41security@apache.org
Patch
https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0security@apache.org
Mailing List
Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/24/11af854a3a-2127-422b-91ae-364da2661108
Mailing List
Third Party Advisory
Hyperlink: https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41
Source: security@apache.org
Resource:
Patch
Hyperlink: https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0
Source: security@apache.org
Resource:
Mailing List
Vendor Advisory
Hyperlink: http://www.openwall.com/lists/oss-security/2026/07/24/11
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Mailing List
Third Party Advisory

Change History

0
Information is not available yet

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Action-Not Available
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CWE ID-CWE-120
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Matching Score-4
Assigner-Zero Day Initiative
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Matching Score-4
Assigner-Zero Day Initiative
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||
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CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Details not found