MSRC_CVE-2026-42975

Vulnerability from csaf_microsoft - Published: 2026-07-14 07:00 - Updated: 2026-07-14 07:00
Summary
Windows Bluetooth Port Driver Remote Code Execution
Severity
Important
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CWE-122 - Heap-based Buffer Overflow
Affected products
Product Identifier Version Remediation
Windows Server 2012 6.2.9200.26226
Windows Server 2012
6.2.9200.26226
Windows Server 2012 (Server Core installation) 6.2.9200.26226
Windows Server 2012 (Server Core installation)
6.2.9200.26226
Windows Server 2012 R2 6.3.9600.23291
Windows Server 2012 R2
6.3.9600.23291
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23291
Windows Server 2012 R2 (Server Core installation)
6.3.9600.23291
Windows Server 2016 10.0.14393.9339
Windows Server 2016
10.0.14393.9339
Windows 10 Version 1607 for 32-bit Systems 10.0.14393.9339
Windows 10 Version 1607 for 32-bit Systems
10.0.14393.9339
Windows 10 Version 1607 for x64-based Systems 10.0.14393.9339
Windows 10 Version 1607 for x64-based Systems
10.0.14393.9339
Windows Server 2016 (Server Core installation) 10.0.14393.9339
Windows Server 2016 (Server Core installation)
10.0.14393.9339
Windows 10 Version 1809 for 32-bit Systems 10.0.17763.9020
Windows 10 Version 1809 for 32-bit Systems
10.0.17763.9020
Windows 10 Version 1809 for x64-based Systems 10.0.17763.9020
Windows 10 Version 1809 for x64-based Systems
10.0.17763.9020
Windows Server 2019 10.0.17763.9020
Windows Server 2019
10.0.17763.9020
Windows Server 2019 (Server Core installation) 10.0.17763.9020
Windows Server 2019 (Server Core installation)
10.0.17763.9020
Windows Server 2022 10.0.20348.5386
Windows Server 2022
10.0.20348.5386
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.7548
Windows 10 Version 21H2 for 32-bit Systems
10.0.19044.7548
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7548
Windows 10 Version 21H2 for ARM64-based Systems
10.0.19044.7548
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.7548
Windows 10 Version 21H2 for x64-based Systems
10.0.19044.7548
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.7548
Windows 10 Version 22H2 for x64-based Systems
10.0.19045.7548
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7548
Windows 10 Version 22H2 for ARM64-based Systems
10.0.19045.7548
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.7548
Windows 10 Version 22H2 for 32-bit Systems
10.0.19045.7548
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.8875
Windows 11 Version 24H2 for ARM64-based Systems
10.0.26100.8875
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.8875
Windows 11 Version 24H2 for x64-based Systems
10.0.26100.8875
Windows Server 2025 10.0.26100.33158
Windows Server 2025
10.0.26100.33158
Windows Server 2025 (Server Core installation) 10.0.26100.33158
Windows Server 2025 (Server Core installation)
10.0.26100.33158
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26200.8875
Windows 11 Version 25H2 for ARM64-based Systems
10.0.26200.8875
Windows 11 Version 25H2 for x64-based Systems 10.0.26200.8875
Windows 11 Version 25H2 for x64-based Systems
10.0.26200.8875
Windows 11 version 26H1 for x64-based Systems 10.0.28000.2269
Windows 11 version 26H1 for x64-based Systems
10.0.28000.2269
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.2525
Windows 11 Version 26H1 for ARM64-based Systems
10.0.28000.2525
Product Identifier Version Remediation
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.2525
Windows 11 Version 26H1 for ARM64-based Systems
<10.0.28000.2525
Vendor Fix fix
Windows 11 version 26H1 for x64-based Systems <10.0.28000.2269
Windows 11 version 26H1 for x64-based Systems
<10.0.28000.2269
Vendor Fix fix
Windows 11 Version 25H2 for x64-based Systems <10.0.26200.8875
Windows 11 Version 25H2 for x64-based Systems
<10.0.26200.8875
Vendor Fix fix
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26200.8875
Windows 11 Version 25H2 for ARM64-based Systems
<10.0.26200.8875
Vendor Fix fix
Windows Server 2025 (Server Core installation) <10.0.26100.33158
Windows Server 2025 (Server Core installation)
<10.0.26100.33158
Vendor Fix fix
Windows Server 2025 <10.0.26100.33158
Windows Server 2025
<10.0.26100.33158
Vendor Fix fix
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.8875
Windows 11 Version 24H2 for x64-based Systems
<10.0.26100.8875
Vendor Fix fix
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.8875
Windows 11 Version 24H2 for ARM64-based Systems
<10.0.26100.8875
Vendor Fix fix
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.7548
Windows 10 Version 22H2 for 32-bit Systems
<10.0.19045.7548
Vendor Fix fix
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.7548
Windows 10 Version 22H2 for ARM64-based Systems
<10.0.19045.7548
Vendor Fix fix
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.7548
Windows 10 Version 22H2 for x64-based Systems
<10.0.19045.7548
Vendor Fix fix
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.7548
Windows 10 Version 21H2 for x64-based Systems
<10.0.19044.7548
Vendor Fix fix
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.7548
Windows 10 Version 21H2 for ARM64-based Systems
<10.0.19044.7548
Vendor Fix fix
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.7548
Windows 10 Version 21H2 for 32-bit Systems
<10.0.19044.7548
Vendor Fix fix
Windows Server 2022 <10.0.20348.5386
Windows Server 2022
<10.0.20348.5386
Vendor Fix fix
Windows Server 2019 (Server Core installation) <10.0.17763.9020
Windows Server 2019 (Server Core installation)
<10.0.17763.9020
Vendor Fix fix
Windows Server 2019 <10.0.17763.9020
Windows Server 2019
<10.0.17763.9020
Vendor Fix fix
Windows 10 Version 1809 for x64-based Systems <10.0.17763.9020
Windows 10 Version 1809 for x64-based Systems
<10.0.17763.9020
Vendor Fix fix
Windows 10 Version 1809 for 32-bit Systems <10.0.17763.9020
Windows 10 Version 1809 for 32-bit Systems
<10.0.17763.9020
Vendor Fix fix
Windows Server 2016 (Server Core installation) <10.0.14393.9339
Windows Server 2016 (Server Core installation)
<10.0.14393.9339
Vendor Fix fix
Windows 10 Version 1607 for x64-based Systems <10.0.14393.9339
Windows 10 Version 1607 for x64-based Systems
<10.0.14393.9339
Vendor Fix fix
Windows 10 Version 1607 for 32-bit Systems <10.0.14393.9339
Windows 10 Version 1607 for 32-bit Systems
<10.0.14393.9339
Vendor Fix fix
Windows Server 2016 <10.0.14393.9339
Windows Server 2016
<10.0.14393.9339
Vendor Fix fix
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23291
Windows Server 2012 R2 (Server Core installation)
<6.3.9600.23291
Vendor Fix fix
Windows Server 2012 R2 <6.3.9600.23291
Windows Server 2012 R2
<6.3.9600.23291
Vendor Fix fix
Windows Server 2012 (Server Core installation) <6.2.9200.26226
Windows Server 2012 (Server Core installation)
<6.2.9200.26226
Vendor Fix fix
Windows Server 2012 <6.2.9200.26226
Windows Server 2012
<6.2.9200.26226
Vendor Fix fix
Threats
Impact Remote Code Execution
Exploit Status Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
Acknowledgments
<a href="https://twitter.com/philiptsukerman">Philip Tsukerman</a> with <a href="https://paloaltonetworks.com/">Palo Alto Networks</a>
Christian Siegert - chrisbsd
Hyeon Park (`@_p0her_`) of Korea University
<a href="https://x.com/_twinklestar03">TwinkleStar03</a> with <a href="https://devco.re/">DEVCORE Internship Program</a>
Hyeon Park (`@_p0her_`) of Korea University

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  "vulnerabilities": [
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      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
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          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
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          "title": "According to the CVSS score, the attack vector is adjacent (AV:A). What does this mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "Exploitation of this vulnerability requires that a user enables Bluetooth and the device set to be discoverable, which is not the default configuration on Windows systems. Once discoverability is enabled, no further user interaction is required for exploitation.",
          "title": "According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?"
        },
        {
          "category": "faq",
          "text": "An attacker could attempt to exploit this vulnerability by sending a specially crafted Bluetooth configuration request to a nearby affected device. If successful, this could allow the attacker to run code on the device without needing user interaction or prior access.",
          "title": "How could an attacker exploit the vulnerability?"
        }
      ],
      "product_status": {
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          "summary": "CVE-2026-42975 Windows Bluetooth Port Driver Remote Code Execution - HTML",
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        },
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          "category": "self",
          "summary": "CVE-2026-42975 Windows Bluetooth Port Driver Remote Code Execution - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-42975.json"
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            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.0,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
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            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
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            "12",
            "13",
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            "15",
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            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Windows Bluetooth Port Driver Remote Code Execution"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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