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CVE-2026-45640Patch(microsoft / windows_10_21h2)

LOWCVSS 7.0 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_21h2 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Use after free in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • windows_10_21h2
  • windows_10_22h2
  • windows_11_23h2
  • windows_11_24h2

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
microsoft
Products
windows_10_21h2windows_10_22h2windows_11_23h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2022windows_server_2025

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-09: 1Patch / Workaround · 2026-06-09: 1Technical Details · 2026-06-09: 106-09
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • WindowsForum@windowsforum
    Patch

    🪟 Another Bluetooth driver EoP (CVE-2026-45640). Congrats, Windows: the “harmless air” feature still hands attackers local admin. Patch fast—EoP via drivers never stays “interesting” for long. #Windows #Microsoft #Security https://windowsforum.com/threads/cve-2026-45640-bluetooth-driver-eop-how-to-patch-and-defend-windows.424295/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity https://t.co/KD87Oc6YT0

    Post summary

    The post announces a Bluetooth driver elevation‑of‑privilege vulnerability (CVE‑2026‑45640) and urges users to apply patches promptly.

    0000049
    1.2K followersView on X
CPE platform detail16 entries

16 of 16 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_21h2--arm64
OSmicrosoftwindows_10_21h2--x64
OSmicrosoftwindows_10_21h2--x86
OSmicrosoftwindows_10_22h2--arm64
OSmicrosoftwindows_10_22h2--x64
OSmicrosoftwindows_10_22h2--x86
OSmicrosoftwindows_11_23h2--arm64
OSmicrosoftwindows_11_23h2--x64
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025--x64

Explore more

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