CVE-2026-45639: CWE-125: Out-of-bounds Read in Microsoft Remote Desktop client for Windows Desktop
Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-125) involves an out-of-bounds read in the Windows Remote Desktop client, which could be exploited by an attacker remotely to disclose sensitive information. The vulnerability does not require privileges or user interaction and has a CVSS 3.1 base score of 7.5, indicating a high impact on confidentiality. Microsoft has published an official fix for this vulnerability as detailed in their security advisory.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to read memory outside the intended bounds, potentially disclosing sensitive information over the network. The integrity and availability of the system are not affected. There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45639 to remediate this vulnerability.
CVE-2026-45639: CWE-125: Out-of-bounds Read in Microsoft Remote Desktop client for Windows Desktop
Description
Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-125) involves an out-of-bounds read in the Windows Remote Desktop client, which could be exploited by an attacker remotely to disclose sensitive information. The vulnerability does not require privileges or user interaction and has a CVSS 3.1 base score of 7.5, indicating a high impact on confidentiality. Microsoft has published an official fix for this vulnerability as detailed in their security advisory.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to read memory outside the intended bounds, potentially disclosing sensitive information over the network. The integrity and availability of the system are not affected. There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45639 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T20:33:35.156Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45639","vendor":"Microsoft"}]
Threat ID: 6a284ce78dd33fbd85664ecc
Added to database: 6/9/2026, 5:27:03 PM
Last enriched: 6/9/2026, 6:41:24 PM
Last updated: 6/10/2026, 5:12:14 AM
Views: 2
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