Edge 157.0.4341.57 and Chrome security update: update this week

Microsoft released Edge version 157.0.4341.57 on 13 November 2026 with the latest Chromium security fixes. Google's own Chrome update, 157.0.8103.78 on 11 November, lists 83 security fixes, 5 rated critical and 78 high. Neither company says any of these new flaws is being used in attacks. Update Edge and Chrome on every office PC and restart the browser.

What changed since the Chrome zero-day on 9 November?

Earlier this week we wrote about the Chrome zero-day CVE-2026-125350, which Google said was already being exploited. Edge got that fix in version 157.0.4341.46 on 9 November.

This is a second, much larger round. Google lists 83 security fixes in its 11 November note. The critical ones are memory bugs in parts such as ServiceWorker, CSS, page layout, the Skia graphics library and accessibility. Many of the high ones are in V8, the engine that runs website JavaScript. Google keeps the bug details private until most people have updated, which is normal practice.

Microsoft's Security Update Guide added the matching Chromium entries for Edge on 13 November. Microsoft's release note says the full CVE list on that page will be filled in as it becomes available.

Who is affected?

• Microsoft Edge on computers older than 157.0.4341.57.
• Google Chrome on Windows or Mac older than 157.0.8103.78 (or .79), and on Linux older than 157.0.8103.78.
• Companies on Chrome's Extended Stable channel should be on 156.0.8078.100, which Google says includes 72 security fixes.

A few Windows PCs may already show Chrome 158. Google is giving that version early to a small share of users, and it is newer, so nothing more is needed on those PCs.

What to do

1. In Edge, click the three dots, then Settings, then About Microsoft Edge. Edge downloads the update by itself.
2. Click Restart when it appears. Save open forms and documents first.
3. Check the version reads 157.0.4341.57 or higher.
4. In Chrome, click the three dots, then Help, then About Google Chrome, and click Relaunch. Check it reads 157.0.8103.78 or higher.
5. Do the same on laptops that staff take home. A browser that is never closed keeps running the old version.
6. If your office uses Brave, Opera or another Chromium browser, install its next update as soon as it appears.

Not sure your office PCs are getting updates? Our help centre explains how to reach our support team.

Source and credit

We are sharing this news from Microsoft and Google. This summary is written by Synctech in our own words.

• Release notes for Microsoft Edge Security Updates, Microsoft Learn, 13 November 2026: https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnotes-security
• Stable Channel Update for Desktop, Chrome Releases, Google, 11 November 2026: http://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html
• Extended Stable Update for Desktop, Chrome Releases, Google, 11 November 2026: http://chromereleases.googleblog.com/2026/11/extended-stable-update-for-desktop_01570615041.html Retrieved 14 Nov 2026. Microsoft Edge, Google Chrome, Brave and Opera are trademarks of their owners. Synctech is not connected with them. This is general information, not legal, tax or financial advice. If anything here is wrong, email support@synctech.com.my and we will correct it.