CVE-2026-11645: Chrome Zero-Day and the Growing Threat of Phishing
On June 17, 2026, INTERPOL released its „Asia and South Pacific Cyberthreat Assessment Report,“ which documents a significant increase in phishing, ransomware, and AI-powered fraud. At the same time, with CVE-2026-11645 The report highlights a critical zero-day vulnerability in Google Chrome that is already being actively exploited. The vulnerability in the V8 JavaScript engine allows attackers to execute malicious code and, when combined with the social engineering methods described in the report, poses a serious threat to businesses worldwide.
The INTERPOL Report: Phishing as the Primary Attack Vector
The report, which analyzes the period from January 2024 to March 2025, shows that phishing and social engineering remain the dominant entry points for cyberattacks. In the Asia-Pacific region, the click-through rate on phishing links—at 5.5 per 1,000 people—is nearly twice as high as the global average. These attacks pave the way for more serious incidents:
System crashes were responsible for approximately 80 % of the data breaches in 2024. In 83 % of these break-ins, Malware used in 51 % of the cases Ransomware. DDoS attacks Measures increased by 92 % compared to the previous year. Discussions about Deepfakes On criminal forums, the number of posts increased by 600 % between February and June 2024.
These figures illustrate that technical vulnerabilities often only become a widespread threat after a successful initial contact via phishing.
Technical Background: CVE-2026-11645
The vulnerability in Google Chrome was added by the U.S. agency CISA to its list of actively exploited vulnerabilities as early as June 8, 2026. It poses a direct threat to end devices and is particularly dangerous due to the high susceptibility to phishing attacks.
Vulnerability: CVE-2026-11645 Type: Out-of-Bounds Read and Write in the V8 JavaScript Engine (CWE-125/CWE-787) CVSS Score: 8.8 (High) Effect: Even though the exploit initially runs within the browser sandbox, this vulnerability allows for the systematic extraction of active session cookies, credentials, and tokens for cloud and SaaS services (e.g., AWS, Microsoft 365, Salesforce). Furthermore, chains involving sandbox-escape exploits pose a risk of complete host takeover. Affected versions: (Originally) All versions of Google Chrome prior to 149.0.7827.103 Status: Is actively exploited.
Exploitation requires user interaction, such as clicking on a link in a phishing email. This brings us back to the INTERPOL report: The high willingness to click on malicious links creates ideal conditions for effectively exploiting browser-based zero-day vulnerabilities to gain initial access.
Recommended Precautions
The most important immediate action is to update all Google Chrome installations right away. Google released the security updates on June 8, 2026.
Windows and macOS: Version 149.0.7827.102/.103 or newer Linux: Version 149.0.7827.102 or newer
Since rolling out an update often depends on the number of clients and can therefore take a considerable amount of time, additional measures should be implemented in parallel to mitigate the impact: Forced browser restart: Since Chrome updates often do not take effect until after a restart, Group Policy Objects (GPOs) should be enforced to force users to close the browser. Stricter web filtering policies: Temporarily block access to uncategorized or newly registered domains via your Secure Web Gateway (SWG) to make it more difficult for the exploit to be delivered. Email hardening: Enable strict filtering of links in incoming emails (link rewriting/sandboxing).
Strategically, companies must strengthen their defenses against social engineering. This includes providing regular security training for employees to help them recognize phishing attempts and implementing technical controls such as DMARC, DKIM, and SPF to make email spoofing more difficult.
CVE-2026-11645 is also directly relevant to European companies: If exploitation of this vulnerability leads to the compromise of personal data, the 72-hour reporting obligation under Article 33 of the GDPR to the competent supervisory authority applies. In addition, companies subject to NIS 2 must ensure that patch management processes for endpoint software are documented and verifiable. The BSI generally recommends installing browser updates immediately as a critical security measure.
How LocateRisk Strengthens Resilience Against Such Attacks
Although CVE-2026-11645 is an endpoint vulnerability, monitoring the external attack surface plays an important role in preventing such attack vectors.
External Attack Surface Management (EASM): LocateRisk automatically identifies IT systems connected to the Internet, assesses their security status, and detects risks such as configuration vulnerabilities—including missing or incorrect email security standards (SPF, DMARC) as well as outdated, publicly accessible web applications and services. Management and IT receive clear, prioritized reports on the security situation; intelligent features support targeted security measures and accelerate the remediation process.
Vendor Risk Management (VRM): The security of your supply chain is critical. Many third-party applications used in enterprises—including Electron-based desktop tools and line-of-business applications that embed CEF—are based on the same V8 engine as Google Chrome and are equally vulnerable to flaws such as CVE-2026-11645. LocateRisk helps you continuously monitor patch compliance for such browser-based components at key suppliers. This allows you to identify early on whether third-party providers have poor patch management practices that could put your own organization at risk.
Sources and further information
Frequently asked questions
This is an actively exploited vulnerability in the V8 JavaScript engine of Google Chrome with a CVSS score of 8.8 (High). It allows a remote attacker to execute arbitrary code within the browser sandbox via a manipulated website. CISA added CVE-2026-11645 to its catalog of known exploited vulnerabilities on June 8, 2026. Since the browser serves as the gateway to all enterprise SaaS services, this vulnerability poses a risk of session token theft and, consequently, unauthorized access to sensitive cloud resources.
For Windows and macOS, the version is 149.0.7827.102/.103 or newer, for sure. Linux users should use version 149.0.7827.102 or update to a newer version. Google released the updates on June 8, 2026; you can check the patch status in the Google Vendor Advisory track.
The report shows that the increasing sophistication of phishing (including AI-assisted attacks) significantly boosts click-through rates. Since an exploit such as CVE-2026-11645 requires a click, the risk of successful initial access is rising across all industries.
LocateRisk minimizes risk proactively: First, by identifying vulnerabilities in email validation protocols (EASM) to curb phishing. Second, by automatically monitoring the security compliance of your IT service providers and software vendors (VRM) that use the same vulnerable software components. Request a free safety check
English 
Deutsch 
Français