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Published by CyberDudeBivash • Date: Oct 30, 2025 (IST)
Your Browser is at Risk: Chrome 142 Patches 20 Vulnerabilities Allowing Malicious Code Execution.
Chrome 142 (Stable) ships 20 security fixes across Windows, macOS, and Linux — with several high-severity issues in V8. Update, relaunch, and apply enterprise guardrails now.
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TL;DR — Update & Relaunch Chrome Now
- Release: Chrome 142 Stable (142.0.7444.59/.60) shipped Oct 28–30, 2025.
- Security: Google lists 20 security fixes, including multiple high-severity V8 issues (Type Confusion, races).
- Risk: Some bugs in similar classes historically enable arbitrary code execution when chained/exploited; outlets summarize 142 as mitigating code-execution risk.
- Action: Go to
chrome://settings/help→ update → Relaunch. Enterprises: push 142, force restart windows, and apply guardrails below.
Contents
- What’s New in Chrome 142 (Security & Platform)
- Security Highlights & CVE Snapshot
- How to Update (Users & Enterprise)
- Rapid Response: 10-Step Playbook
- Enterprise Guardrails for Browsers
- Hardening Checklist (Post-Update)
- FAQ
- Sources
What’s New in Chrome 142 (Security & Platform)
- Local network access restrictions gated behind permission prompts (reduces risk from web pages poking your LAN devices).
- Ongoing security architecture work (site isolation improvements, memory safety efforts).
Security Highlights & CVE Snapshot
Google’s bulletin for 142 confirms 20 security fixes with multiple High-severity entries in V8, Media, Extensions, etc. Highlights include:
- CVE-2025-12428: Type Confusion in V8 (High; $50,000 bounty).
- CVE-2025-12429: Inappropriate implementation in V8 (High; $50,000).
- CVE-2025-12431: Inappropriate implementation in Extensions (High).
- Additional Medium/Low issues across Storage, Omnibox, PageInfo, Ozone, WebXR, and UI.
Media coverage frames the update as reducing pathways to malicious code execution — a common outcome when V8 bugs are exploited.
How to Update (Users & Enterprise)
- Desktop (user): Menu → Help → About Google Chrome → wait for 142 → Relaunch.
- Mobile: Update via Play Store/App Store; relaunch.
- Enterprise (Google Admin/Intune/Jamf): Pin minimum version to 142+, schedule forced relaunch (off-hours), and verify rollout via console reports.
Rapid Response: 10-Step Playbook (Do this today)
- Push Chrome 142 to all endpoints; force relaunch policy for laggards.
- Audit extension allowlist; remove untrusted items.
- Turn on Enhanced Safe Browsing for high-risk users.
- Harden password managers; enforce hardware-key 2FA for Google accounts.
- Block legacy plugins and risky flags via policy.
- Update OS graphics/media libs (reduce exploit stability).
- Monitor for crashes after untrusted site visits (triage possible exploit attempts).
- SIEM hunt: unusual child processes from browser, unsolicited downloads,
--single-processanomalies. - Threat-intel: watch for fresh exploit kits targeting 142-fixed classes.
- Communicate: org-wide update memo + helpdesk script.
Enterprise Guardrails for Browsers
- Set BrowserMinimumVersion=142; enable AutoUpdateCheckPeriodMinutes and RelaunchNotification.
- Use OS-level isolation (AppContainer/macOS sandbox) and EDR rules for suspicious browser child processes.
- Restrict LAN device access from browser where unnecessary; consider Chrome 142’s new permission gating.
- Segment ad-hoc browsing (VDI) for high-privilege admins.
Post-Update Hardening Checklist
- Enable site isolation; disable remote debugging on production endpoints.
- Lock dangerous protocols/handlers; review file-type auto-open.
- Set strict download policies; scan all downloads.
- Educate users to relaunch after update prompts (patch is inactive until restart).
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FAQ
Is there a zero-day in 142?
Google’s 142 bulletin lists 20 fixes and highlights externally reported issues. As of publication, it does not flag an in-the-wild zero-day in the Stable post. Always apply updates promptly.
Do I need to relaunch?
Yes. Chrome only activates the new binaries after a relaunch.
What’s the risk if I delay?
Exploit kits regularly target browser engines (like V8). Delaying patches increases exposure to drive-by attacks.
What changed for local network access?
Chrome 142 restricts requests to devices on your local network unless permitted, reducing certain web-to-LAN abuse paths.
Sources
- Google Chrome Releases — Stable Channel Update (Chrome 142; 20 security fixes; versions/build numbers).
- Chrome for Developers — Chrome 142 release notes (local network access restrictions; platform notes).
- Coverage: “Chrome 142 Released With Fix for 20 Vulnerabilities that Allows Malicious Code Execution.”
- Nessus plugin note referencing versions < 142.0.7444.59 affected by multiple vulnerabilities.
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