【Vulnerability Alert】60 High-Risk Security Vulnerabilities in Chromium-Based Browsers; Prompt Verification and Patching Recommended

• Subject: 【Vulnerability Alert】60 High-Risk Security Vulnerabilities in Chromium-Based Browsers; Prompt Verification and Patching Recommended

• Description:
  • Forwarded from National Information Security Analysis Center (NISAC) Security Alert NISAC-200-202604-00000008.
  • Researchers have discovered 60 high-risk security vulnerabilities (CVE-2026-5858 to CVE-2026-5915, CVE-2026-5918, and CVE-2026-5919) in Chromium-based browsers, including Google Chrome, Microsoft Edge, Vivaldi, and Brave. The vulnerability types include Heap-based Buffer Overflow and Use After Free. In the most severe cases, an unauthenticated remote attacker could cause memory corruption or execute arbitrary code via a specially crafted HTML page. Please verify and perform patching as soon as possible.
• Affected Platforms:
  • Google Chrome versions prior to 147.0.7727.55
  • Microsoft Edge versions prior to 147.0.3912.60
  • Vivaldi versions prior to 7.9.3970.50
  • Brave versions prior to 1.89.132
• Recommended Actions:
  1. Please update Google Chrome to version 147.0.7727.55 or later: https://support.google.com/chrome/answer/95414?hl=zh-Hant
  2. Please update Microsoft Edge to version 147.0.3912.60 or later: https://support.microsoft.com/en-us/topic/microsoft-edge-update-settings-af8aaca2-1b69-4870-94fe-18822dbb7ef1
  3. Please update Vivaldi to version 7.9.3970.50 or later: https://help.vivaldi.com/desktop/install-update/update-vivaldi/
  4. Please update Brave to version 1.89.132 or later: https://community.brave.com/t/how-to-update-brave/384780
• Reference:
  1. https://support.google.com/chrome/answer/95414?hl=zh-Hant
  2. https://support.microsoft.com/en-us/topic/microsoft-edge-update-settings-af8aaca2-1b69-4870-94fe-18822dbb7ef1
  3. https://help.vivaldi.com/desktop/install-update/update-vivaldi/
  4. https://community.brave.com/t/how-to-update-brave/384780
  5. https://help.opera.com/en/latest/crashes-and-issues/#updateBrowser
  6. https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
  7. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-5919
  8. https://vivaldi.com/blog/desktop/desktop-updates/minor-update-five-7-9/
  9. https://brave.com/latest/

Computer and Communication Center
Network Systems Division