CVE-2026-23671
published 2026-03-10CVE-2026-23671: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an authorized…
PriorityP337high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
EPSS
0.21%
10.6th percentile
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an authorized attacker to elevate privileges locally.
Affected
39 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1607 | < 10.0.14393.8957 | 10.0.14393.8957 |
| microsoft | windows_10_1809 | < 10.0.17763.8511 | 10.0.17763.8511 |
| microsoft | windows_10_21h2 | < 10.0.19044.7058 | 10.0.19044.7058 |
| microsoft | windows_10_22h2 | < 10.0.19045.7058 | 10.0.19045.7058 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.8957 | 10.0.14393.8957 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.8511 | 10.0.17763.8511 |
| microsoft | windows_10_version_21h2 | >= 10.0.19044.0 < 10.0.19044.7058 | 10.0.19044.7058 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.7058 | 10.0.19045.7058 |
| microsoft | windows_11_23h2 | < 10.0.22631.6783 | 10.0.22631.6783 |
| microsoft | windows_11_24h2 | < 10.0.26100.7979 | 10.0.26100.7979 |
| microsoft | windows_11_25h2 | < 10.0.26200.7979 | 10.0.26200.7979 |
| microsoft | windows_11_26h1 | < 10.0.28000.1719 | 10.0.28000.1719 |
| microsoft | windows_11_version_22h3 | >= 10.0.22631.0 < 10.0.22631.6783 | 10.0.22631.6783 |
| microsoft | windows_11_version_23h2 | >= 10.0.22631.0 < 10.0.22631.6783 | 10.0.22631.6783 |
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.8037 | 10.0.26100.8037 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26200.8037 | 10.0.26200.8037 |
| microsoft | windows_11_version_26h1 | >= 10.0.28000.0 < 10.0.28000.1719 | 10.0.28000.1719 |
| microsoft | windows_server_2016 | < 10.0.14393.8957 | 10.0.14393.8957 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.8957 | 10.0.14393.8957 |
| microsoft | windows_server_2019 | < 10.0.17763.8511 | 10.0.17763.8511 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.8511 | 10.0.17763.8511 |
| microsoft | windows_server_2022 | < 10.0.20348.4830 | 10.0.20348.4830 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.4893 | 10.0.20348.4893 |
| microsoft | windows_server_2022_23h2 | < 10.0.25398.2207 | 10.0.25398.2207 |
| microsoft | windows_server_2025 | < 10.0.26100.32463 | 10.0.26100.32463 |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_msrc7.0HIGH
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VulDB
Microsoft Windows up to Server 2025 Bluetooth RFCOM Protocol Driver race condition (WID-SEC-2026-0661)
vuldb·2026-07-06·CVSS 7.0
CVE-2026-23671 [HIGH] Microsoft Windows up to Server 2025 Bluetooth RFCOM Protocol Driver race condition (WID-SEC-2026-0661)
A vulnerability, which was classified as critical, was found in Microsoft Windows. Affected by this issue is some unknown functionality of the component Bluetooth RFCOM Protocol Driver. Such manipulation leads to race condition.
This vulnerability is listed as CVE-2026-23671. The attack must be carried out locally. There is no available exploit.
It is advisable to implement a patch to correct this issue.
GHSA
GHSA-m9m8-hx7m-5rv8: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an autho
ghsa_unreviewed·2026-03-10
CVE-2026-23671 [HIGH] CWE-362 GHSA-m9m8-hx7m-5rv8: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an autho
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an authorized attacker to elevate privileges locally.
Microsoft
Windows Bluetooth RFCOM Protocol Driver Elevation of Privilege Vulnerability
vendor_msrc·2026-03-10·CVSS 7.0
CVE-2026-23671 [HIGH] CWE-362 Windows Bluetooth RFCOM Protocol Driver Elevation of Privilege Vulnerability
Windows Bluetooth RFCOM Protocol Driver Elevation of Privilege Vulnerability
Description: Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an authorized attacker to elevate privileges locally.
FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to win a race condition.
FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Windows Bluetooth RFCOM Protocol Driver: Windows Bluetooth RFCOM Protocol Driver
Microsoft: Microsoft
Customer A
No detection rules found.
No public exploits indexed.
Sophos
March Patch Tuesday visits 15 product families
blogs_sophos·2026-03-13
March Patch Tuesday visits 15 product families
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Bleepingcomputer
Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws
blogs_bleepingcomputer·2026-03-10·CVSS 8.8
[HIGH] Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws
## Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws
## Lawrence Abrams
The number of bugs in each vulnerability category is listed below:
46 Elevation of Privilege Vulnerabilities
2 Security Feature Bypass Vulnerabilities
18 Remote Code Execution Vulnerabilities
10 Information Disclosure Vulnerabilities
4 Denial of Service Vulnerabilities
4 Spoofing Vulnerabilities
When BleepingComputer reports on Patch Tuesday security updates, we only count those released by Microsoft today. Therefore, the number of flaws does not include 9 Microsoft Edge flaws, Mariner, Payment Orchestrator Service, Azure, and Microsoft Devices Pricing Program flaws fixed earlier this month.
To learn more about the non-security updates released today, you can review our dedicated articles on the
Sophos
March Patch Tuesday visits 15 product families
blogs_sophos
March Patch Tuesday visits 15 product families
Share This
Microsoft on Tuesday released 84 patches affecting 15 product families – including a few you’ve possibly never encountered. Eight of the addressed issues are considered by Microsoft to be of Critical severity, though none of those affect Windows, nor are they expected to be exploited within the next 30 days. In addition, five of those Critical issues were in fact addressed by Microsoft in advance of Patch Tuesday itself, as we’ll discuss below. Twenty-two have a CVSS base score of 8.0 or higher, including one with a 9.8 base score. None are known to be under active exploit in the wild, but two are publicly disclosed so far.
At patch time, six CVEs are judged more likely to be exploited in the next 30 days by the company’s estimation. Various of this month’s issues are amenable
Wiz
CVE-2026-23671 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.0
CVE-2026-23671 [HIGH] CVE-2026-23671 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-23671 :
vulnerability analysis and mitigation
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Bluetooth RFCOM Protocol Driver allows an authorized attacker to elevate privileges locally.
Source : NVD
## 7
Score
Published March 10, 2026
Severity HIGH
CNA Score 7.0
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 8.9
Exploitation Probability (EPSS) N/A
Sources
NVD
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2026-03-10
Published