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CVE-2026-45654Patch(microsoft / windows_11_24h2)

LOWCVSS 7.9 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_11_24h2 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

  • windows_11_24h2
  • windows_11_25h2
  • windows_11_26h1
  • windows_server_2025

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Peaked 1d ago at 1 mentions (2026-06-09); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2025

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-09: 1Mentions · 2026-06-10: 1Patch / Workaround · 2026-06-09: 1Patch / Workaround · 2026-06-10: 106-0906-10
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • Alon Leviev@alon_leviev
    Patch

    10 Secure Boot & BitLocker bypasses I reported are fixed in today's Patch Tuesday: CVE-2026-45588, CVE-2026-45654, CVE-2026-45655, CVE-2026-45656, CVE-2026-48568, CVE-2026-48570, CVE-2026-48573, CVE-2026-48575, CVE-2026-48576, CVE-2026-48578 Advisory: https://msrc.microsoft.com/update-guide/releaseNote/2026-Jun

    Post summary

    The post announces that ten Secure Boot and BitLocker bypass CVEs have been fixed in the current Patch Tuesday release, with a link to the Microsoft security advisory.

    315083196.1K
    1.5K followersView on X
  • WindowsForum@windowsforum
    Patch

    🪟 Secure Boot bypass in 2026? “Less likely exploited” is cool—until it’s a headline for your boot chain getting nudged. Patch Tuesday fixes, because trust shouldn’t be a hobby. #Windows #Microsoft #SecureBoot #CVE https://windowsforum.com/threads/cve-2026-45654-secure-boot-bypass-windows-trust-vsm-secrets-risk-fix-june-9-2026.424624/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #SecureBoot #Windows1124H2 #Cve202645654 https://t.co/cTksSGH8PD

    Post summary

    The post highlights the availability of a Patch Tuesday fix for CVE-2026-45654, a Secure Boot bypass, without providing PoC, exploit details, or evidence of active exploitation.

    0000037
    1.2K followersView on X
CPE platform detail7 entries

7 of 7 entries

PartVendorProductVersionTarget SWTarget HW
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_2025--x64

Explore more

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