CVE-2025-27490· NVD / CVE Program· CNA microsoft

Windows Bluetooth Service Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.

HighCVSS 7.8 · v3.1—No exploit No fix recorded

BDU:2025-04238

Published: Apr 8, 2025
Updated: Aug 10, 2026
EPSS: 0.6% · 46th percentile
CWE: CWE-122

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.6%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · microsoft: 7.8; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
microsoft	windows 10 21h2	cpe:2.3:o:microsoft:windows_10_21h2
microsoft	windows 10 22h2	cpe:2.3:o:microsoft:windows_10_22h2
microsoft	windows 11 22h2	cpe:2.3:o:microsoft:windows_11_22h2
microsoft	windows 11 23h2	cpe:2.3:o:microsoft:windows_11_23h2
microsoft	windows 11 24h2	cpe:2.3:o:microsoft:windows_11_24h2
microsoft	windows server 2022	cpe:2.3:o:microsoft:windows_server_2022
microsoft	windows server 2022 23h2	cpe:2.3:o:microsoft:windows_server_2022_23h2
microsoft	windows server 2025	cpe:2.3:o:microsoft:windows_server_2025

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

microsoft windows server 2022before 10.0.20348.3453
microsoft windows server 2022 23h2before 10.0.25398.1551
microsoft windows server 2025before 10.0.26100.3775

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

Microsoft Windows 10 Version 21H2
- 10.0.19044.0 and later · before 10.0.19044.5737affected
Microsoft Windows 10 Version 22H2
- 10.0.19045.0 and later · before 10.0.19045.5737affected
Microsoft Windows 11 version 22H2
- 10.0.22621.0 and later · before 10.0.22621.5189affected
Microsoft Windows 11 version 22H3
- 10.0.22631.0 and later · before 10.0.22631.5189affected
Microsoft Windows 11 Version 23H2
- 10.0.22631.0 and later · before 10.0.22631.5189affected
Microsoft Windows 11 Version 24H2
- 10.0.26100.0 and later · before 10.0.26100.3775affected
Microsoft Windows Server 2022
- 10.0.20348.0 and later · before 10.0.20348.3453affected
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
- 10.0.25398.0 and later · before 10.0.25398.1551affected
Microsoft Windows Server 2025
- 10.0.26100.0 and later · before 10.0.26100.3775affected
Microsoft Windows Server 2025 (Server Core installation)
- 10.0.26100.0 and later · before 10.0.26100.3775affected

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

CVE-2025-21333Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege VulnerabilityKEV
64This week
CVE-2025-21335Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege VulnerabilityKEV
61This week
CVE-2025-21334Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege VulnerabilityKEV
61This week
CVE-2023-38186Windows Mobile Device Management Elevation of Privilege Vulnerability
39Monitor
CVE-2026-42904Windows TCP/IP Elevation of Privilege Vulnerability
38Monitor
CVE-2023-38148Internet Connection Sharing (ICS) Remote Code Execution Vulnerability
37Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-2133384 days apartWindows Hyper-V NT Kernel Integration VSP Elevation of Privilege VulnerabilityKEV
64This week
CVE-2026-42904427 days apartWindows TCP/IP Elevation of Privilege Vulnerability
38Monitor
CVE-2025-266390 days apartWindows USB Print Driver Elevation of Privilege Vulnerability
31Monitor
CVE-2026-33841399 days apartWindows Kernel Elevation of Privilege Vulnerability
31Monitor
CVE-2026-49175462 days apartWindows DNS Client Elevation of Privilege Vulnerability
31Monitor
CVE-2026-61355490 days apartWindows Sensor Data Service Elevation of Privilege Vulnerability
31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Forced Integer OverflowCAPEC-92likelihood: High · High

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27490

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records