CVE-2025-58718Network attack vectorHinoki check available

Remote code execution via stale freed-memory reference

Published Oct 14, 2025 · Updated Oct 14, 2025

Use-after-free in Microsoft Remote Desktop Client allows remote attackers to execute code when a user connects to malicious RDP content. Microsoft identifies stale use of freed memory but has not disclosed the affected object, function, or sequence that preserves the reference. Exploitation requires user interaction; successful code execution can compromise data and interrupt the client system.

CVSS severity8.8
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Use-after-free in Microsoft Remote Desktop Client allows remote attackers to execute code when a user connects to malicious RDP content. Microsoft identifies stale use of freed memory but has not disclosed the affected object, function, or sequence that preserves the reference. Exploitation requires user interaction; successful code execution can compromise data and interrupt the client system.

The record

CVE
CVE-2025-58718
Published
Oct 14, 2025
Updated
Oct 14, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.21161

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.21161
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.7919
Microsoft · Windows Server 2025 (Server Core installation)version=10.0.26100.0 <10.0.26100.6899
Microsoft · Windows 11, version 25H2version=10.0.26200.0 <10.0.26200.6899
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.8519
Microsoft · Windows 11, version 24H2version=10.0.26100.0 <10.0.26100.6899
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.25722
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.25722
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.6456
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.1913
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.8519
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.6060
Microsoft · Windows App Client for Windows Desktopversion=1.00 <2.0.706.0
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.27974
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.27974
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.6456
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.22824
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.7919
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.6060
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.6060
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.8519
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.23571
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.4294
Microsoft · Windows Server 2025version=10.0.26100.0 <10.0.26100.6899
Microsoft · Windows 10 Version 1809version=10.0.17763.0 <10.0.17763.7919
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.22824
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.23571
Microsoft · Remote Desktop client for Windows Desktopversion=1.2.0.0 <1.2.6599.0

Published CVSS scores

8.8Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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