CVE-2026-50656: CWE-59: Improper Link Resolution Before File Access ('Link Following') in Microsoft Microsoft Malware Protection Engine
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.
AI Analysis
Technical Summary
This vulnerability in the Microsoft Malware Protection Engine involves improper link resolution before file access, classified under CWE-59. It can lead to elevation of privilege, allowing an attacker with local access and low complexity to gain higher privileges. The CVSS 3.1 base score is 7.8, indicating high severity with impacts on confidentiality, integrity, and availability. Microsoft has acknowledged the vulnerability and is working on a security update but has not yet provided a patch or mitigation details.
Potential Impact
Successful exploitation could allow an attacker with limited privileges on the affected system to elevate their privileges, potentially leading to full control over the system. The vulnerability impacts confidentiality, integrity, and availability of the system as indicated by the CVSS vector. No known exploits are currently reported in the wild.
Mitigation Recommendations
No official patch or workaround is currently available. Microsoft is actively working on a security update to address this vulnerability. Users and administrators should monitor the Microsoft Security Response Center advisory for updates and apply the security update promptly once released.
CVE-2026-50656: CWE-59: Improper Link Resolution Before File Access ('Link Following') in Microsoft Microsoft Malware Protection Engine
Description
Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the Microsoft Malware Protection Engine involves improper link resolution before file access, classified under CWE-59. It can lead to elevation of privilege, allowing an attacker with local access and low complexity to gain higher privileges. The CVSS 3.1 base score is 7.8, indicating high severity with impacts on confidentiality, integrity, and availability. Microsoft has acknowledged the vulnerability and is working on a security update but has not yet provided a patch or mitigation details.
Potential Impact
Successful exploitation could allow an attacker with limited privileges on the affected system to elevate their privileges, potentially leading to full control over the system. The vulnerability impacts confidentiality, integrity, and availability of the system as indicated by the CVSS vector. No known exploits are currently reported in the wild.
Mitigation Recommendations
No official patch or workaround is currently available. Microsoft is actively working on a security update to address this vulnerability. Users and administrators should monitor the Microsoft Security Response Center advisory for updates and apply the security update promptly once released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-05T14:33:50.831Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- unavailable
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656","vendor":"Microsoft"}]
Threat ID: 6a3196620b89be688808a42c
Added to database: 6/16/2026, 6:30:58 PM
Last enriched: 6/16/2026, 6:46:56 PM
Last updated: 6/17/2026, 5:11:14 AM
Views: 9
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