CVE-2024-49099: Windows Wireless Wide Area Network Service (WwanSvc) Information Disclosure Vulnerability

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-12-10 · updated 2026-06-17
Weakness: CWE-125

Description

Windows Wireless Wide Area Network Service (WwanSvc) Information Disclosure Vulnerability

Affected products

Microsoft Windows 10: before 10.0.17763.6659 — fixed in 10.0.17763.6659
Microsoft Windows 10: before 10.0.19044.5247 — fixed in 10.0.19044.5247
Microsoft Windows 10: before 10.0.19045.5247 — fixed in 10.0.19045.5247
Microsoft Windows 11: before 10.0.22621.4602 — fixed in 10.0.22621.4602
Microsoft Windows 11: before 10.0.22631.4602 — fixed in 10.0.22631.4602
Microsoft Windows 11: before 10.0.26100.2605 — fixed in 10.0.26100.2605
Microsoft Windows Server 2019: before 10.0.17763.6659 — fixed in 10.0.17763.6659
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): before 10.0.25398.1308 — fixed in 10.0.25398.1308
Microsoft Windows Server 2025: before 10.0.26100.2605 — fixed in 10.0.26100.2605
Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.6659 — fixed in 10.0.17763.6659
Microsoft Windows 10: from 10.0.19043.0 before 10.0.19044.5247 — fixed in 10.0.19044.5247
Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.5247 — fixed in 10.0.19045.5247
Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.4602 — fixed in 10.0.22621.4602
Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.4602 — fixed in 10.0.22631.4602
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.4602 — fixed in 10.0.22631.4602
Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.2605 — fixed in 10.0.26100.2605
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.6659 — fixed in 10.0.17763.6659
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1308 — fixed in 10.0.25398.1308
Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.2605 — fixed in 10.0.26100.2605

How to fix

Upgrade to a fixed version: Microsoft Windows 10 10.0.17763.6659; Microsoft Windows 10 10.0.19044.5247; Microsoft Windows 10 10.0.19045.5247; Microsoft Windows 11 10.0.22621.4602; Microsoft Windows 11 10.0.22631.4602; Microsoft Windows 11 10.0.26100.2605; Microsoft Windows Server 2019 10.0.17763.6659; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1308; Microsoft Windows Server 2025 10.0.26100.2605; Microsoft Windows 10 10.0.17763.6659; Microsoft Windows 10 10.0.19044.5247; Microsoft Windows 10 10.0.19045.5247. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49099

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