CVE-2025-27490 — Heap-based Buffer Overflow in Microsoft Windows 10 Version 21h2

CWE-122 — Heap-based Buffer OverflowCWE-125 — Out-of-bounds Read5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.6%
top 30.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
14
Microsoft Windows 10 Version 21h2Microsoft Windows 10 Version 22h2Microsoft Windows 11 Version 22h2+11 more
Timeline
PublishedApr 8

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages14 packages

▶NVDmicrosoft/windows< 10.0.20348.3453+2
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.5737
▶NVDmicrosoft/windows_10_22h2< 10.0.19045.5737
▶NVDmicrosoft/windows_11_22h2< 10.0.22621.5189
▶NVDmicrosoft/windows_11_23h2< 10.0.22631.5189

🔴Vulnerability Details

2
GHSA
GHSA-fhf5-q9qm-767w: Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally↗2025-04-08
▶
CVEList
Windows Bluetooth Service Elevation of Privilege Vulnerability↗2025-04-08
▶

📋Vendor Advisories

1
Microsoft
Windows Bluetooth Service Elevation of Privilege Vulnerability↗2025-04-08
▶

🕵️Threat Intelligence

1
Bleepingcomputer
Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws↗2025-04-08
▶
CVE-2025-27490 — Heap-based Buffer Overflow | cvebase