Edge for Android — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/edge-for-android/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioTue, 12 May 2026 14:14:53 +0000Multiple Vulnerabilities in Microsoft Edge Allow for Privilege Escalation, Data Breach, and Security Policy Bypasshttps://feed.craftedsignal.io/briefs/2026-05-multiple-edge-vulns/Tue, 12 May 2026 14:14:53 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-multiple-edge-vulns/Multiple vulnerabilities in Microsoft Edge and Microsoft Edge for Android can allow an attacker to perform privilege escalation, cause a data breach, and bypass security policies.On May 12, 2026, CERT-FR published an advisory (CERTFR-2026-AVI-0570) detailing multiple vulnerabilities in Microsoft Edge and Microsoft Edge for Android. The vulnerabilities can lead to privilege escalation, data breaches, and security policy bypass. The affected versions are Microsoft Edge versions earlier than 148.0.3967.55 and Microsoft Edge for Android versions earlier than 148.0.3967.55. These vulnerabilities pose a significant risk, as successful exploitation could allow attackers to gain unauthorized access and control over affected systems and sensitive user data.

Attack Chain

Due to the nature of the vulnerabilities (privilege escalation, data breach, and security policy bypass) without specific exploitation details, a generic attack chain is presented:

  1. An attacker identifies a vulnerable Microsoft Edge or Edge for Android version.
  2. The attacker crafts a malicious payload or exploits a specific vulnerability (CVE-2026-35429, CVE-2026-41107, CVE-2026-42838, CVE-2026-42891, CVE-2026-7897, CVE-2026-7905, CVE-2026-7912, CVE-2026-7913, CVE-2026-7915, CVE-2026-7931, CVE-2026-7941, CVE-2026-7993, CVE-2026-8020).
  3. The user interacts with the malicious payload, such as by visiting a compromised website or opening a specially crafted file.
  4. The vulnerability is triggered, allowing the attacker to execute arbitrary code within the context of the Edge process.
  5. The attacker escalates privileges, gaining higher-level access to the system or application.
  6. Sensitive data is accessed and potentially exfiltrated.
  7. Security policies are bypassed, allowing the attacker to perform actions that would normally be restricted.
  8. The attacker maintains persistence and expands their access to other systems on the network.

Impact

Successful exploitation of these vulnerabilities could have severe consequences. Attackers could gain elevated privileges, enabling them to perform administrative tasks, install malware, or modify system settings. Data breaches could lead to the theft of sensitive user information, such as credentials, financial data, or personal details. Bypassing security policies could allow attackers to circumvent security controls and perform unauthorized actions, potentially compromising the entire system.

Recommendation

  • Apply the latest Microsoft Edge updates to version 148.0.3967.55 or later for both desktop and Android platforms to remediate the vulnerabilities (see CVE-2026-35429, CVE-2026-41107, CVE-2026-42838, CVE-2026-42891, CVE-2026-7897, CVE-2026-7905, CVE-2026-7912, CVE-2026-7913, CVE-2026-7915, CVE-2026-7931, CVE-2026-7941, CVE-2026-7993, CVE-2026-8020).
  • Implement the “Detect Suspicious Edge Process Creation” Sigma rule to identify potential exploitation attempts through unusual process spawning.
  • Monitor network traffic for suspicious outbound connections originating from Microsoft Edge processes using the “Detect Suspicious Edge Outbound Connection” Sigma rule.
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