How severe is CVE-2026-41097?

CVE-2026-41097 has a CVSS 3.x base score of 6.7, rated medium 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 high.

Is CVE-2026-41097 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41097?

CVE-2026-41097 primarily affects Microsoft Windows 10 1809. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-41097?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-41097 have an EU (EUVD) identifier?

Yes. CVE-2026-41097 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29685.

When was CVE-2026-41097 published?

CVE-2026-41097 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-41097

CVE-2026-41097 is a medium-severity vulnerability in Microsoft Windows 10 1809 with a CVSS 3.x base score of 6.7. 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: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29685
Weakness: CWE-1329
Affected product: Microsoft Windows 10 1809
Published: 2026-05-12
Last modified: 2026-06-17

Description

Reliance on a component that is not updateable in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

Frequently asked questions

What is CVE-2026-41097?: Reliance on a component that is not updateable in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
How severe is CVE-2026-41097?: CVE-2026-41097 has a CVSS 3.x base score of 6.7, rated medium 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 high.
Is CVE-2026-41097 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41097?: CVE-2026-41097 primarily affects Microsoft Windows 10 1809. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-41097?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-41097 have an EU (EUVD) identifier?: Yes. CVE-2026-41097 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29685.
When was CVE-2026-41097 published?: CVE-2026-41097 was published on 2026-05-12 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41097

Affected products (20)

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_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Windows 10 1809

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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-2026-48576 — High (CVSS 7.9): Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
CVE-2026-48573 — High (CVSS 7.9): Protection mechanism failure in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.
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 →