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CVE-2025-24052

Windows Agere Modem Driver Elevation of Privilege Vulnerability

HIGH
7.8
CVSS Score
Published: October 14, 2025 at 05:00 PM UTC
Updated: June 17, 2026 at 08:57 AM UTC
17 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
HIGH7.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver has been removed in the October cumulative update. Fax modem hardware dependent on this specific driver will no longer work on Windows. Microsoft recommends removing any existing dependencies on this hardware.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1507· Microsoft
95%
v < 10.0.10240.2116110.0.10240.0 ≤ v < 10.0.10240.2116110.0.10240.0
Affected range stops below 10.0.10240.21161, so it looks safe — our inference, not a vendor statement
Windows 10 1607· Microsoft
95%
v < 10.0.14393.851910.0.14393.0 ≤ v < 10.0.14393.851910.0.14393.0
Affected range stops below 10.0.14393.8519, so it looks safe — our inference, not a vendor statement
Windows 10 1809· Microsoft
95%
v < 10.0.17763.791910.0.17763.0 ≤ v < 10.0.17763.791910.0.17763.0
Affected range stops below 10.0.17763.7919, so it looks safe — our inference, not a vendor statement
Windows 10 21H2· Microsoft
95%
v < 10.0.19044.645610.0.19044.0 ≤ v < 10.0.19044.645610.0.19044.0
Affected range stops below 10.0.19044.6456, so it looks safe — our inference, not a vendor statement
Windows 10 22H2· Microsoft
95%
v < 10.0.19045.645610.0.19045.0 ≤ v < 10.0.19045.645610.0.19045.0
Affected range stops below 10.0.19045.6456, so it looks safe — our inference, not a vendor statement
Windows 11 22H2· Microsoft
95%
v < 10.0.22621.606010.0.22621.0 ≤ v < 10.0.22621.606010.0.22621.0
Affected range stops below 10.0.22621.6060, so it looks safe — our inference, not a vendor statement
Windows 11 23H2· Microsoft
95%
v ≤ 10.0.22631.606010.0.22631.0 ≤ v < 10.0.22631.606010.0.22631.0
Affected range stops below 10.0.22631.6060, so it looks safe — our inference, not a vendor statement
Windows 11 24H2· Microsoft
95%
v < 10.0.26100.689910.0.26100.0 ≤ v < 10.0.26100.689910.0.26100.0
Affected range stops below 10.0.26100.6899, so it looks safe — our inference, not a vendor statement
Windows 11 25H2· Microsoft
95%
v < 10.0.26200.689910.0.26200.0 ≤ v < 10.0.26200.689910.0.26200.0
Affected range stops below 10.0.26200.6899, so it looks safe — our inference, not a vendor statement
Windows Server 2008· Microsoft
95%
6.0.6003.0 ≤ v < 6.0.6003.235716.1.7601.0 ≤ v < 6.1.7601.279746.0.6003.06.1.7601.0r2 sp1sp2
Affected range stops below 6.0.6003.23571, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.7601.27974, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24052

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-121

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