CVE-2025-5419: Google Chromium V8 Out-of-Bounds Read and Write Vulnerability

Required action (CISA's text)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description (NVD)

Google Chromium V8 contains an out-of-bounds read and write vulnerability that could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

SOURCES

• CISA KEVCISA Known Exploited Vulnerabilities catalog

Other Google flaws

• CVE-2026-125350: Google Chromium Use-After-Free Vulnerability
• CVE-2026-111497: Google Brotli Unchecked Return Value Vulnerability
• CVE-2026-58704: Google Pixel Improper Authorization Vulnerability
• CVE-2026-87491: Google Chromium V8 Out of Bounds Write Vulnerability
• CVE-2026-85046: Google Chromium V8 Type Confusion Vulnerability

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.