Critical Remote Code Execution in Windows - CVE-2026-12440

Remote code execution in Google Chrome on Windows (versions prior to 149.0.7827.155) allows a remote attacker to run arbitrary code within the browser process by luring a victim to a crafted HTML page that triggers a heap buffer overflow in the WebRTC component. Rated High severity by Chromium and scored CVSS 8.8, it requires user interaction (visiting a malicious page) but no authentication. No public exploit identified at time of analysis; EPSS is low at 0.40% and CISA SSVC records exploitation status as 'none'.

Heap corruption in the Downloads component of Google Chrome for Android before 149.0.7827.155 lets a remote attacker trigger a use-after-free by luring a victim to a crafted HTML page, potentially achieving code execution in the renderer. Rated High severity by Chromium with an 8.8 CVSS, but there is no public exploit identified at time of analysis and CISA SSVC records exploitation status as none. EPSS is low (0.30%, 21st percentile), consistent with a patched browser bug not yet weaponized.

Remote code execution in Google Chrome (desktop) versions prior to 149.0.7827.155 stems from a use-after-free in the Web Authentication (WebAuthn) component, letting a remote attacker who lures a victim to a crafted HTML page corrupt memory and run arbitrary code. Chromium rates the flaw Critical severity; it carries CVSS 8.8 and requires user interaction (visiting a malicious page). No public exploit is identified at time of analysis, and EPSS remains low at 0.44%, but the SSVC 'total' technical impact and the memory-corruption class make it a high-priority browser patch.

Heap-based buffer overflow in Google Chrome's WebRTC component (versions prior to 149.0.7827.155) lets a remote attacker execute arbitrary code inside the browser's renderer sandbox by luring a victim to a crafted HTML page. Google rates the Chromium severity as High and a fixed Stable channel build is available; there is no public exploit identified at time of analysis, and the EPSS score of 0.36% (28th percentile) reflects low near-term exploitation probability. CISA's SSVC framework records exploitation status as 'none,' so this is patch-worthy but not yet an emergency.

Heap corruption in Google Chrome's Digital Credentials component (versions prior to 149.0.7827.155) allows remote attackers to trigger a use-after-free condition by enticing a user to visit a crafted HTML page, potentially leading to arbitrary code execution within the renderer process. Chromium rates this issue as Critical severity, and Google has released a patched stable-channel build; no public exploit identified at time of analysis and EPSS sits at 0.31% (23rd percentile), indicating low predicted near-term exploitation pressure despite the high CVSS of 8.8.

Remote code execution in Google Chrome on Android before 149.0.7827.155 stems from a use-after-free in the Passwords component, letting a remote attacker who lures a victim to a crafted HTML page corrupt memory and execute arbitrary code within the browser process. Chromium rates the flaw Critical, though the assigned CVSS is 8.8; there is no public exploit identified at time of analysis and CISA SSVC records exploitation status as none. EPSS is low at 0.39% (30th percentile), consistent with a patched, not-yet-exploited memory bug.

Privilege escalation in Google Chrome's WebView component on Android (versions prior to 149.0.7827.155) allows a remote attacker to break out of intended privilege boundaries when a victim opens a crafted HTML page. Rated High by Chromium with a CVSS of 8.8, the flaw yields high confidentiality, integrity, and availability impact but requires user interaction. No public exploit is identified at time of analysis, and the low EPSS (0.27%) plus SSVC 'Exploitation: none' indicate it is not currently being exploited despite the severe technical impact.

Heap corruption via use-after-free in Google Chrome's File Input component on Linux affects all versions prior to 149.0.7827.155, allowing a remote attacker to exploit memory corruption through a crafted HTML page that the victim visits. Chromium rates this Critical severity and a vendor patch is available; no public exploit has been identified at time of analysis and the SSVC framework records exploitation status as none. EPSS is low at 0.29% (21st percentile), consistent with a freshly patched, not-yet-weaponized browser flaw.