Microsoft

Microsoft

Microsoft’s November 2025 Patch Tuesday addressed **CVE-2025-62215**, an actively exploited **Windows Kernel race condition vulnerability** enabling **local privilege escalation to SYSTEM**. Though exploit code exists, it remains limited in distribution, reducing immediate widespread risk. However, the flaw affects **all supported Windows OS versions**, including Windows 10 under Extended Security Updates (ESU), heightening exposure for unpatched systems. Experts warn that such vulnerabilities are often chained with other exploits (e.g., code execution bugs) to **fully compromise systems**. The patch also included fixes for **CVE-2025-60724**, a **critical heap-based buffer overflow in GDI+**, allowing **remote code execution (RCE) without user interaction** via malicious documents or web uploads. While Microsoft deems exploitation 'less likely,' its low-complexity attack vector and potential for **unauthenticated exploitation** make it high-risk. Additionally, **CVE-2025-62199** (a **use-after-free in Microsoft Office**) leverages the **Preview Pane** as an attack vector, increasing real-world exploitation odds by bypassing user warnings. The **Agentic AI/Visual Studio Code flaw (CVE-2025-62222)** introduced a novel attack chain: **malicious GitHub issues** with hidden commands could trigger **RCE in developer environments** if interacted with in a specific mode. This underscores risks in **trusted toolchain compromises**, though exploitation requires precise user actions. While no **direct data breaches or ransomware** were reported, the **critical-severity flaws** pose **elevation-of-privilege and RCE risks**, potentially enabling **follow-on attacks** like lateral movement, data theft, or system takeovers if left unpatched. Organizations failing to apply patches risk **operational disruption, credential theft, or downstream supply-chain attacks** via compromised developer tools.

Source: https://www.helpnetsecurity.com/2025/11/12/patch-tuesday-microsoft-cve-2025-62215/

Devoteam | Microsoft Partner cybersecurity rating report: https://www.rankiteo.com/company/devoteam-m-cloud

"id": "DEV0832208111225",
"linkid": "devoteam-m-cloud",
"type": "Vulnerability",
"date": "11/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"
{'affected_entities': [{'customers_affected': 'All users of supported Windows '
                                              'OS editions, Windows 10 ESU, '
                                              'Microsoft Office, Visual Studio '
                                              'Code, Exchange Server 2016/2019',
                        'industry': 'Technology',
                        'location': 'Redmond, Washington, USA',
                        'name': 'Microsoft',
                        'size': 'Large (220,000+ employees)',
                        'type': 'Corporation'},
                       {'industry': 'Multiple',
                        'location': 'Global',
                        'name': 'Organizations using Windows 10 without ESU',
                        'type': 'Businesses/Enterprises'},
                       {'industry': 'Software Development',
                        'location': 'Global',
                        'name': 'Developers using Visual Studio Code CoPilot '
                                'Chat Extension',
                        'type': 'Individuals/Organizations'}],
 'attack_vector': ['Local (for CVE-2025-62215)',
                   'Remote (for CVE-2025-60724, CVE-2025-62222)',
                   'User Interaction Required (for CVE-2025-62199, '
                   'CVE-2025-62222)',
                   'Malicious Document (Metafile, Office File, GitHub Issue)',
                   'Preview Pane (for CVE-2025-62199)',
                   'Network-Based (for CVE-2025-62222)'],
 'customer_advisories': ['End-users should ensure their systems are updated '
                         'via Windows Update.',
                         'Developers should update Visual Studio Code and '
                         'avoid interacting with suspicious GitHub issues.',
                         'Outlook users may disable Preview Pane as a '
                         'temporary mitigation for CVE-2025-62199.'],
 'date_publicly_disclosed': '2025-11-12',
 'date_resolved': '2025-11-12',
 'description': "Microsoft's November 2025 Patch Tuesday addressed over 60 "
                'vulnerabilities, including an actively exploited Windows '
                'Kernel flaw (CVE-2025-62215), a memory corruption issue '
                'stemming from a race condition allowing local elevation of '
                'privileges to SYSTEM. The update also included fixes for '
                'critical vulnerabilities in Graphics Device Interface Plus '
                '(GDI+), Microsoft Office, and Agentic AI/Visual Studio Code. '
                'Exploitation of CVE-2025-62215 was observed in limited '
                'attacks, with functional but not widely available exploit '
                'code. Additional patches addressed vulnerabilities in '
                'Exchange Server, Windows 10 ESU, and other legacy systems '
                'nearing end-of-support.',
 'impact': {'brand_reputation_impact': ['Potential erosion of trust in '
                                        "Microsoft's patch management for "
                                        'legacy systems',
                                        'Concerns over novel attack vectors '
                                        '(e.g., GitHub-based exploitation)'],
            'operational_impact': ['Risk of SYSTEM-level compromise on '
                                   'affected Windows systems',
                                   'Potential for wormable RCE in GDI+ (though '
                                   'assessed as unlikely)',
                                   'Developer environment compromise via VS '
                                   'Code extension',
                                   'Increased attack surface for legacy '
                                   'systems (Windows 10, Exchange 2016/2019)'],
            'systems_affected': ['Windows Kernel (Privilege Escalation)',
                                 'Windows Applications (RCE via GDI+)',
                                 'Microsoft Office (RCE via Malicious Files)',
                                 'Visual Studio Code (RCE via GitHub Issues)',
                                 'Exchange Server 2016/2019 (Legacy Support '
                                 'Risk)']},
 'investigation_status': 'Ongoing (Limited exploitation observed for '
                         'CVE-2025-62215; no confirmed exploits for other '
                         'CVEs)',
 'lessons_learned': ['Race conditions in kernel-level components can be '
                     'reliably exploited when paired with other '
                     'vulnerabilities (e.g., code execution bugs).',
                     'Legacy systems (Windows 10, Exchange 2016/2019) remain '
                     'high-risk targets without extended support.',
                     'Developer tools (e.g., VS Code extensions) are emerging '
                     'attack vectors via trusted platforms like GitHub.',
                     'Preview Pane in Outlook can bypass user warnings, '
                     'increasing exploitation risk for Office vulnerabilities.',
                     'Proactive patching and ESU enrollment are critical for '
                     'mitigating risks in end-of-life software.'],
 'post_incident_analysis': {'corrective_actions': ['Microsoft has released '
                                                   'patches for all reported '
                                                   'vulnerabilities.',
                                                   'Enhanced code reviews for '
                                                   'kernel-level race '
                                                   'conditions.',
                                                   'Improved input validation '
                                                   'for GDI+ and Office file '
                                                   'parsing.',
                                                   'Security hardening for VS '
                                                   'Code extensions, '
                                                   'particularly those '
                                                   'interacting with external '
                                                   'platforms (e.g., GitHub).',
                                                   'Extended support options '
                                                   '(ESU) for legacy systems '
                                                   'with clear migration '
                                                   'timelines.'],
                            'root_causes': ['Race condition in Windows Kernel '
                                            'due to improper synchronization '
                                            '(CVE-2025-62215).',
                                            'Heap-based buffer overflow in '
                                            'GDI+ (CVE-2025-60724).',
                                            'Use-after-free in Microsoft '
                                            'Office (CVE-2025-62199).',
                                            'Insufficient input sanitization '
                                            'in VS Code CoPilot Chat Extension '
                                            '(CVE-2025-62222).',
                                            'Legacy system support gaps '
                                            '(Windows 10, Exchange '
                                            '2016/2019).']},
 'recommendations': [{'actions': ['Immediately apply November 2025 Patch '
                                  'Tuesday updates, prioritizing '
                                  'CVE-2025-62215 and CVE-2025-60724.',
                                  'Enroll in Windows 10 ESU if still using '
                                  'Windows 10 post-EoL.',
                                  'Migrate from Exchange 2016/2019 to Exchange '
                                  'SE before the 6-month ESU period ends.',
                                  'Disable Preview Pane in Outlook to mitigate '
                                  'CVE-2025-62199.',
                                  'Educate developers on risks associated with '
                                  'VS Code extensions and GitHub issues '
                                  '(CVE-2025-62222).'],
                      'for': 'Enterprises'},
                     {'actions': ['Update Visual Studio Code and CoPilot Chat '
                                  'Extension to the latest patched version.',
                                  'Avoid enabling non-standard modes on GitHub '
                                  'issues from untrusted sources.',
                                  'Monitor for suspicious commands in issue '
                                  'descriptions or pull requests.'],
                      'for': 'Developers'},
                     {'actions': ['Monitor for exploitation attempts targeting '
                                  'CVE-2025-62215 (privilege escalation) and '
                                  'CVE-2025-60724 (RCE).',
                                  'Implement network segmentation for systems '
                                  'running legacy Windows or Exchange '
                                  'versions.',
                                  'Review Microsoft’s mitigation guidance for '
                                  'high-severity vulnerabilities.'],
                      'for': 'Security Teams'}],
 'references': [{'date_accessed': '2025-11-12',
                 'source': 'Microsoft Security Update Guide (November 2025 '
                           'Patch Tuesday)',
                 'url': 'https://msrc.microsoft.com/update-guide/'},
                {'date_accessed': '2025-11-12',
                 'source': 'Trend Micro’s Zero Day Initiative (Analysis of '
                           'CVE-2025-62215)'},
                {'date_accessed': '2025-11-12',
                 'source': 'Ivanti (Patch Management Guidance by Chris '
                           'Goettl)'},
                {'date_accessed': '2025-11-12',
                 'source': 'Rapid7 (Vulnerability Assessment by Adam Barnett)'},
                {'date_accessed': '2025-11-12',
                 'source': 'Immersive Labs (Technical Analysis of '
                           'CVE-2025-62222 by Ben McCarthy)'}],
 'response': {'communication_strategy': ['Public advisory via Microsoft '
                                         'Security Update Guide',
                                         'Collaboration with security '
                                         'researchers for technical details',
                                         'Media outreach (e.g., quotes from '
                                         'Trend Micro, Ivanti, Rapid7, '
                                         'Immersive Labs)'],
              'containment_measures': ['Release of Patch Tuesday updates '
                                       '(November 2025)',
                                       'Out-of-band update for Windows 10 ESU '
                                       'enrollment issues',
                                       'Guidance to subscribe to Windows 10 '
                                       'ESU and apply mitigations',
                                       'Advisory to migrate from Exchange '
                                       '2016/2019 to Exchange SE'],
              'enhanced_monitoring': ['Recommended for systems exposed to '
                                      'CVE-2025-60724 (GDI+ RCE)'],
              'incident_response_plan_activated': 'Yes (Microsoft Security '
                                                  'Response Center - MSRC)',
              'remediation_measures': ['Patches for CVE-2025-62215, '
                                       'CVE-2025-60724, CVE-2025-62199, '
                                       'CVE-2025-62222',
                                       'Disabling Preview Pane in Outlook '
                                       '(mitigation for CVE-2025-62199)',
                                       'Avoiding interaction with untrusted '
                                       'GitHub issues (mitigation for '
                                       'CVE-2025-62222)'],
              'third_party_assistance': ['Trend Micro’s Zero Day Initiative '
                                         '(Analysis)',
                                         'Ivanti (Patch Management Guidance)',
                                         'Rapid7 (Vulnerability Assessment)',
                                         'Immersive Labs (Technical Analysis '
                                         'for CVE-2025-62222)']},
 'stakeholder_advisories': ['Microsoft advises all customers to apply patches '
                            'immediately, especially for actively exploited '
                            'vulnerabilities.',
                            'Organizations using Windows 10 post-EoL are urged '
                            'to enroll in ESU or upgrade to supported '
                            'versions.',
                            'Exchange Server administrators are recommended to '
                            'migrate to Exchange SE before the ESU period '
                            'ends.'],
 'title': 'Microsoft November 2025 Patch Tuesday: Actively Exploited Windows '
          'Kernel Flaw (CVE-2025-62215) and Other Critical Vulnerabilities',
 'type': ['Vulnerability Disclosure',
          'Privilege Escalation',
          'Remote Code Execution (RCE)',
          'Memory Corruption',
          'Race Condition',
          'Buffer Overflow',
          'Use-After-Free',
          'Command Injection'],
 'vulnerability_exploited': [{'affected_components': ['Windows Kernel'],
                              'affected_versions': ['All supported Windows OS '
                                                    'editions, Windows 10 ESU'],
                              'cve_id': 'CVE-2025-62215',
                              'description': 'Memory corruption due to race '
                                             'condition in Windows Kernel, '
                                             'allowing local elevation of '
                                             'privileges to SYSTEM.',
                              'exploit_status': 'Actively Exploited (Limited)',
                              'severity': 'High'},
                             {'affected_components': ['GDI+'],
                              'affected_versions': ['Windows applications '
                                                    'using GDI+'],
                              'cve_id': 'CVE-2025-60724',
                              'description': 'Heap-based buffer overflow in '
                                             'Graphics Device Interface Plus '
                                             '(GDI+), leading to remote code '
                                             'execution without user '
                                             'interaction.',
                              'exploit_status': 'Proof of Concept Likely (Not '
                                                'Exploited in Wild)',
                              'severity': 'Critical'},
                             {'affected_components': ['Microsoft Office'],
                              'cve_id': 'CVE-2025-62199',
                              'description': 'Use-after-free flaw in Microsoft '
                                             'Office, exploitable via '
                                             'malicious files or Preview Pane '
                                             'to achieve code execution.',
                              'exploit_status': 'Not Exploited (High '
                                                'Probability of Exploitation)',
                              'severity': 'High'},
                             {'affected_components': ['Visual Studio Code '
                                                      'CoPilot Chat Extension'],
                              'cve_id': 'CVE-2025-62222',
                              'description': 'Command injection in Visual '
                                             'Studio Code CoPilot Chat '
                                             'Extension, allowing unauthorized '
                                             'remote code execution via '
                                             'malicious GitHub issues.',
                              'exploit_status': 'Not Exploited (Novel Attack '
                                                'Chain)',
                              'severity': 'High'}]}
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