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CVE-2025-48799

Microsoft Windows 10 1607 vulnerability

7.8 HIGHPublic exploitEPSS 1.26%
  1. Published8 Jul 2025

Description

Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1607< 10.0.14393.8246
Microsoft Windows 10 1809< 10.0.17763.7558
Microsoft Windows 10 21h2< 10.0.19044.6093
Microsoft Windows 10 22h2< 10.0.19045.6093
Microsoft Windows 11 22h2< 10.0.22621.5624
Microsoft Windows 11 23h2< 10.0.22631.5624
Microsoft Windows 11 24h2< 10.0.26100.4652
Microsoft Windows Server 2025< 10.0.26100.4652

Remediation

Fixed in
Microsoft Windows 10 1607≥ 10.0.14393.8246
Microsoft Windows 10 1809≥ 10.0.17763.7558
Microsoft Windows 10 21h2≥ 10.0.19044.6093
Microsoft Windows 10 22h2≥ 10.0.19045.6093
Microsoft Windows 11 22h2≥ 10.0.22621.5624
Microsoft Windows 11 23h2≥ 10.0.22631.5624
Microsoft Windows 11 24h2≥ 10.0.26100.4652
Microsoft Windows Server 2025≥ 10.0.26100.4652

References

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Frequently asked

Is CVE-2025-48799 being actively exploited?

CVE-2025-48799 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.26%.

How severe is CVE-2025-48799?

CVE-2025-48799 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 1.26% probability of exploitation.

Which products are affected by CVE-2025-48799?

Affected products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2, and 3 more.

How do I fix CVE-2025-48799?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1607 10.0.14393.8246, Microsoft Windows 10 1809 10.0.17763.7558, Microsoft Windows 10 21h2 10.0.19044.6093 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-48799 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.