CVE-2026-70579: Windows Mobile Broadband Information Disclosure Vulnerability

Published Sep 8, 2026
·
Updated

Out-of-bounds read in Windows Mobile Broadband allows an unauthorized attacker to disclose information over a network.

Other sources

Windows Mobile Broadband Information Disclosure Vulnerability

Microsoft

Affected Software

14 affected componentsFixes available
Microsoft Windows 11=25H2
10.0.26200.9445
Microsoft Windows 11=26H1
10.0.28000.2954
Microsoft Windows 11=24H2
10.0.26100.9445
Microsoft Windows 11=24H2
10.0.26100.9445
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows 11=26H1
10.0.28000.2954
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows 11=25H2
10.0.26200.9445
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows 10=21H2
10.0.19044.7725

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26200.9445Patch KB5124008
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.28000.2954Patch KB5124012
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9445Patch KB5124008
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.22631.7582Patch KB5122880
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19045.7725Patch KB5122878
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.19044.7725Patch KB5122878

Event History

Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:17 PM
Data Sourced
via MITRE·05:17 PM
DescriptionSeverity
Data Sourced
via NVD·06:20 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who can exploit this issue?

An unauthorized attacker can exploit it remotely over a network. The provided vector indicates no privileges or user interaction are required.

2

What is the impact of successful exploitation?

Successful exploitation can disclose information from affected Windows Mobile Broadband components. The supplied metrics indicate high confidentiality impact, with no stated integrity or availability impact.

3

Which systems are identified as affected?

The affected software list identifies Microsoft Windows 10 and Microsoft Windows 11.

Contact

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