The vulnerability’s severity lies in its ability to allow malicious actors to break free from the browser’s security sandbox through carefully crafted HTML pages, effectively bypassing one of the most fundamental security mechanisms designed to protect users from web-based threats. The vulnerability, designated as CVE-2025-6558, poses a significant security risk to millions of users across multiple web browsers that utilize the Chromium engine. Users and administrators should prioritize immediate updates to the latest browser versions to protect against ongoing exploitation attempts targeting this critical vulnerability. The agency specifically references Binding Operational Directive (BOD) 22-01 guidance for cloud services, emphasizing the critical nature of this security issue. CISA has issued an urgent warning about a critical vulnerability in Google Chromium that threat actors are actively exploiting. CISA has established a firm remediation deadline of August 12, 2025, following the vulnerability’s addition to their Known Exploited Vulnerabilities catalog on July 22, 2025.
This Cyber News was published on cybersecuritynews.com. Publication date: Thu, 24 Jul 2025 06:55:14 +0000