MSRC_CVE-2026-58626
Vulnerability from csaf_microsoft - Published: 2026-07-14 07:00 - Updated: 2026-07-14 07:00Summary
Windows Remote Desktop Services Remote Code Execution Vulnerability
Severity
Important
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CWE-416
- Use After Free
Affected products
Fixed
15 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2022 10.0.20348.5386
Windows Server 2022
|
10.0.20348.5386 | ||
|
Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.7548
Windows 10 Version 21H2 for 32-bit Systems
|
10.0.19044.7548 | ||
|
Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7548
Windows 10 Version 21H2 for ARM64-based Systems
|
10.0.19044.7548 | ||
|
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.7548
Windows 10 Version 21H2 for x64-based Systems
|
10.0.19044.7548 | ||
|
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.7548
Windows 10 Version 22H2 for x64-based Systems
|
10.0.19045.7548 | ||
|
Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7548
Windows 10 Version 22H2 for ARM64-based Systems
|
10.0.19045.7548 | ||
|
Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.7548
Windows 10 Version 22H2 for 32-bit Systems
|
10.0.19045.7548 | ||
|
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.8875
Windows 11 Version 24H2 for ARM64-based Systems
|
10.0.26100.8875 | ||
|
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.8875
Windows 11 Version 24H2 for x64-based Systems
|
10.0.26100.8875 | ||
|
Windows Server 2025 10.0.26100.33158
Windows Server 2025
|
10.0.26100.33158 | ||
|
Windows Server 2025 (Server Core installation) 10.0.26100.33158
Windows Server 2025 (Server Core installation)
|
10.0.26100.33158 | ||
|
Windows 11 Version 25H2 for ARM64-based Systems 10.0.26100.8875
Windows 11 Version 25H2 for ARM64-based Systems
|
10.0.26100.8875 | ||
|
Windows 11 Version 25H2 for x64-based Systems 10.0.26100.8875
Windows 11 Version 25H2 for x64-based Systems
|
10.0.26100.8875 | ||
|
Windows 11 version 26H1 for x64-based Systems 10.0.28000.2525
Windows 11 version 26H1 for x64-based Systems
|
10.0.28000.2525 | ||
|
Windows 11 Version 26H1 for ARM64-based Systems 10.0.28000.2525
Windows 11 Version 26H1 for ARM64-based Systems
|
10.0.28000.2525 |
Known affected
15 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows 11 Version 26H1 for ARM64-based Systems <10.0.28000.2525
Windows 11 Version 26H1 for ARM64-based Systems
|
<10.0.28000.2525 |
Vendor Fix
fix
|
|
|
Windows 11 version 26H1 for x64-based Systems <10.0.28000.2525
Windows 11 version 26H1 for x64-based Systems
|
<10.0.28000.2525 |
Vendor Fix
fix
|
|
|
Windows 11 Version 25H2 for x64-based Systems <10.0.26100.8875
Windows 11 Version 25H2 for x64-based Systems
|
<10.0.26100.8875 |
Vendor Fix
fix
|
|
|
Windows 11 Version 25H2 for ARM64-based Systems <10.0.26100.8875
Windows 11 Version 25H2 for ARM64-based Systems
|
<10.0.26100.8875 |
Vendor Fix
fix
|
|
|
Windows Server 2025 (Server Core installation) <10.0.26100.33158
Windows Server 2025 (Server Core installation)
|
<10.0.26100.33158 |
Vendor Fix
fix
|
|
|
Windows Server 2025 <10.0.26100.33158
Windows Server 2025
|
<10.0.26100.33158 |
Vendor Fix
fix
|
|
|
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.8875
Windows 11 Version 24H2 for x64-based Systems
|
<10.0.26100.8875 |
Vendor Fix
fix
|
|
|
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.8875
Windows 11 Version 24H2 for ARM64-based Systems
|
<10.0.26100.8875 |
Vendor Fix
fix
|
|
|
Windows 10 Version 22H2 for 32-bit Systems <10.0.19045.7548
Windows 10 Version 22H2 for 32-bit Systems
|
<10.0.19045.7548 |
Vendor Fix
fix
|
|
|
Windows 10 Version 22H2 for ARM64-based Systems <10.0.19045.7548
Windows 10 Version 22H2 for ARM64-based Systems
|
<10.0.19045.7548 |
Vendor Fix
fix
|
|
|
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.7548
Windows 10 Version 22H2 for x64-based Systems
|
<10.0.19045.7548 |
Vendor Fix
fix
|
|
|
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.7548
Windows 10 Version 21H2 for x64-based Systems
|
<10.0.19044.7548 |
Vendor Fix
fix
|
|
|
Windows 10 Version 21H2 for ARM64-based Systems <10.0.19044.7548
Windows 10 Version 21H2 for ARM64-based Systems
|
<10.0.19044.7548 |
Vendor Fix
fix
|
|
|
Windows 10 Version 21H2 for 32-bit Systems <10.0.19044.7548
Windows 10 Version 21H2 for 32-bit Systems
|
<10.0.19044.7548 |
Vendor Fix
fix
|
|
|
Windows Server 2022 <10.0.20348.5386
Windows Server 2022
|
<10.0.20348.5386 |
Vendor Fix
fix
|
Threats
Impact
Remote Code Execution
Exploit Status
Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely
References
7 references
Acknowledgments
<a href="https://www.linkedin.com/in/danielr1123/">Daniel R</a>
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"vulnerabilities": [
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"cwe": {
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"name": "Use After Free"
},
"notes": [
{
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"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "An authenticated attacker could exploit this vulnerability by connecting to a target system via Remote Desktop Protocol (RDP) and sending specially crafted requests that trigger a use-after-free condition in the Remote Desktop service, allowing the attacker to execute arbitrary code on the target system.",
"title": "How could an attacker exploit this vulnerability?"
},
{
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"text": "An attacker must first have access to a Windows system as an authenticated user and then use that system to establish a connection to the target server and send the malicious data that triggers the vulnerability.",
"title": "According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?"
}
],
"product_status": {
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"11930",
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"12099",
"12389",
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"12436",
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"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
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}
],
"remediations": [
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 7.7,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14",
"15"
]
}
],
"threats": [
{
"category": "impact",
"details": "Remote Code Execution"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely"
}
],
"title": "Windows Remote Desktop Services Remote Code Execution Vulnerability"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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