CVE-2026-48576

CVE-2026-48576 is a high-severity vulnerability in Microsoft Windows 10 1607 with a CVSS 3.x base score of 7.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1329.

Key facts

• Severity: High (CVSS 3.x base score 7.9)
• EPSS exploit prediction: 1% (61st percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2026-35525
• Weakness: CWE-1329
• Affected product: Microsoft Windows 10 1607
• Published: 2026-06-09
• Last modified: 2026-07-23

Description

No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

Frequently asked questions

What is CVE-2026-48576?

No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

How severe is CVE-2026-48576?

CVE-2026-48576 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-48576 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48576?

CVE-2026-48576 primarily affects Microsoft Windows 10 1607. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-48576?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-48576 have an EU (EUVD) identifier?

Yes. CVE-2026-48576 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35525.

When was CVE-2026-48576 published?

CVE-2026-48576 was published on 2026-06-09 and last updated on 2026-07-23.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48576

Affected products (24)

• cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
• cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
• cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
• cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

More vulnerabilities in Microsoft Windows 10 1607

• CVE-2026-57092 — Critical (CVSS 9.9): Use after free in Windows VMSwitch allows an authorized attacker to elevate privileges over a network.
• CVE-2026-65791 — Critical (CVSS 9.8): Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a…
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• CVE-2026-62878 — Critical (CVSS 9.8): Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
• CVE-2026-56190 — Critical (CVSS 9.8): Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.
• CVE-2026-56188 — Critical (CVSS 9.8): Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Network…

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Other CWE-1329 vulnerabilities

• CVE-2022-34381 — Critical (CVSS 9.1): Dell BSAFE SSL-J version 7.0 and all versions prior to 6.5, and Dell BSAFE Crypto-J versions prior to 6.2.6.1 contain…
• CVE-2026-48573 — High (CVSS 7.9): No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
• CVE-2026-41097 — Medium (CVSS 6.7): Reliance on a component that is not updateable in Windows Secure Boot allows an authorized attacker to bypass a…
• CVE-2021-38398 — Medium (CVSS 6.5): The affected device uses off-the-shelf software components that contain unpatched vulnerabilities. A malicious attacker…
• CVE-2026-21265 — Medium (CVSS 6.4): Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. These original certificates are approaching…

Browse all CWE-1329 vulnerabilities →