Microsoft: Microsoft Edge Vulnerability Allows Remote Attacker to Execute Arbitrary Code

Microsoft Edge Vulnerability (CVE-2026-57992) Exposes Systems to Remote Code Execution

Microsoft has disclosed a high-severity vulnerability in Microsoft Edge (Chromium-based), tracked as CVE-2026-57992, which could allow remote attackers to execute arbitrary code on affected systems. The flaw, rated 7.5 (High) on the CVSS scale, stems from a Use-After-Free (UAF) memory corruption issue in Edge’s Chromium engine.

Key Details

• Vulnerability Type: Use-After-Free (UAF) in Microsoft Edge’s rendering engine.
• Attack Vector: Network-based, requiring user interaction.
• Exploitation Method: Attackers must trick victims into visiting a malicious webpage and performing two sequential tap gestures to trigger Edge’s autofill functionality, leading to memory corruption.
• Complexity: High successful exploitation depends on precise user actions and crafted form elements.
• Impact: If exploited, attackers could gain arbitrary code execution within the browser process, potentially enabling further lateral movement, data exfiltration, or malware deployment.

Affected Versions

• Microsoft Edge 150.0.4078.48 (released July 3, 2026), based on Chromium 150.0.7871.47.

Current Status

• No patch available as of publication.
• No public proof-of-concept exploit has been observed, but attackers may leverage social engineering (phishing, malicious links) to lure victims.

Mitigation Measures

While no official fix exists, organizations and users are advised to:

• Monitor Microsoft’s Security Response Center (MSRC) for updates.
• Educate users on avoiding suspicious links and attachments.
• Enable Enhanced Security Mode in Edge where possible.
• Restrict autofill functionality in enterprise environments as a temporary workaround.

The vulnerability underscores the risks of browser-based attacks, particularly those requiring user interaction to trigger memory corruption flaws.

Source: https://cybersecuritynews.com/microsoft-edge-flaw-code-execution/

Microsoft Security Response Center cybersecurity rating report: https://www.rankiteo.com/company/microsoft-security-response-center

"id": "MIC1783355078",
"linkid": "microsoft-security-response-center",
"type": "Vulnerability",
"date": "3/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

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                        'name': 'Microsoft Edge',
                        'type': 'Software'}],
 'attack_vector': 'Network-based, requiring user interaction',
 'description': 'Microsoft has disclosed a high-severity vulnerability in '
                'Microsoft Edge (Chromium-based), tracked as CVE-2026-57992, '
                'which could allow remote attackers to execute arbitrary code '
                'on affected systems. The flaw, rated 7.5 (High) on the CVSS '
                'scale, stems from a Use-After-Free (UAF) memory corruption '
                'issue in Edge’s Chromium engine. Attackers must trick victims '
                'into visiting a malicious webpage and performing two '
                'sequential tap gestures to trigger Edge’s autofill '
                'functionality, leading to memory corruption. If exploited, '
                'attackers could gain arbitrary code execution within the '
                'browser process, potentially enabling further lateral '
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 'impact': {'operational_impact': 'Potential arbitrary code execution, lateral '
                                  'movement, data exfiltration, or malware '
                                  'deployment',
            'systems_affected': 'Microsoft Edge (Chromium-based) versions up '
                                'to 150.0.4078.48'},
 'post_incident_analysis': {'root_causes': 'Use-After-Free (UAF) memory '
                                           'corruption issue in Edge’s '
                                           'Chromium engine'},
 'recommendations': ['Monitor Microsoft’s Security Response Center (MSRC) for '
                     'updates',
                     'Educate users on avoiding suspicious links and '
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                     'Enable Enhanced Security Mode in Edge where possible',
                     'Restrict autofill functionality in enterprise '
                     'environments as a temporary workaround'],
 'references': [{'source': 'Microsoft Security Response Center (MSRC)'}],
 'response': {'containment_measures': ['Monitor Microsoft’s Security Response '
                                       'Center (MSRC) for updates',
                                       'Educate users on avoiding suspicious '
                                       'links and attachments',
                                       'Enable Enhanced Security Mode in Edge '
                                       'where possible',
                                       'Restrict autofill functionality in '
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                                       'workaround']},
 'title': 'Microsoft Edge Vulnerability (CVE-2026-57992) Exposes Systems to '
          'Remote Code Execution',
 'type': 'Vulnerability',
 'vulnerability_exploited': 'CVE-2026-57992 (Use-After-Free in Microsoft '
                            'Edge’s rendering engine)'}