How severe is CVE-2025-48813?

CVE-2025-48813 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-48813 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-48813?

CVE-2025-48813 primarily affects Microsoft Windows 10 1809. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-48813?

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

Does CVE-2025-48813 have an EU (EUVD) identifier?

Yes. CVE-2025-48813 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34355.

When was CVE-2025-48813 published?

CVE-2025-48813 was published on 2025-10-14 and last updated on 2026-06-17.

CVE-2025-48813

CVE-2025-48813 is a medium-severity vulnerability in Microsoft Windows 10 1809 with a CVSS 3.x base score of 6.3. 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-324.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34355
Weakness: CWE-324
Affected product: Microsoft Windows 10 1809
Published: 2025-10-14
Last modified: 2026-06-17

Description

Use of a key past its expiration date in Virtual Secure Mode allows an authorized attacker to perform spoofing locally.

Frequently asked questions

What is CVE-2025-48813?: Use of a key past its expiration date in Virtual Secure Mode allows an authorized attacker to perform spoofing locally.
How severe is CVE-2025-48813?: CVE-2025-48813 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-48813 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-48813?: CVE-2025-48813 primarily affects Microsoft Windows 10 1809. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-48813?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-48813 have an EU (EUVD) identifier?: Yes. CVE-2025-48813 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34355.
When was CVE-2025-48813 published?: CVE-2025-48813 was published on 2025-10-14 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48813

Affected products (12)

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:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*:*

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