Should you update to Microsoft Edge 152.0.4191.65?
No: install Microsoft Edge 156.0.4314.58 instead. Microsoft Edge 152.0.4191.65 is a security update Microsoft released on 8 Sep 2026 for Mac and Windows. It fixes 3 security flaws.[1] None of them is known to be used in attacks.
It has since been replaced by Microsoft Edge 153.0.4234.32, released 10 Sep 2026, which includes all of its fixes. If you’re on an older version, install that instead.
Should you update?
No: install Microsoft Edge 156.0.4314.58 instead. Microsoft Edge 156.0.4314.58 came out on 30 Oct 2026 and includes every fix in Microsoft Edge 152.0.4191.65, so there’s no reason to stop at this one. Software Update offers the newest version your device can run.
Is Microsoft Edge 152.0.4191.65 still safe?
Not any more. The 17 updates since, up to Microsoft Edge 156.0.4314.58, fix 1,155 security flaws that Microsoft Edge 152.0.4191.65 doesn’t, and each became public the day its fix shipped. Installing it is safe: get it only from Edge’s own About page (Edge updates itself; there’s nothing to download from a website), never from a link in an email, text or pop-up.
What it fixes
Microsoft lists 3 security flaws.[1] Microsoft doesn’t rate them by severity. They are:
| Flaw | Severity | What Microsoft calls it |
|---|---|---|
CVE-2026-84330 | Not rated | Chromium: CVE-2026-84330 UI misrepresentation in FullScreen |
CVE-2026-84333 | Not rated | Chromium: CVE-2026-84333 Use after free in Dawn |
CVE-2026-84352 | Not rated | Chromium: CVE-2026-84352 Use after free in WebGL |
How to update, and how long it takes
A minute or two. Edge restarts and reopens your tabs.
- Open Edge and click the three dots (…) at the top right.Choose Help and feedback, then About Microsoft Edge.
- Let it download the update.Edge checks as soon as that page opens. When it’s done, click Restart.
To check it worked: Three dots (…) → Help and feedback → About Microsoft Edge: the version is under the name, e.g. 157.0.4341.42. It should say 153.0.4234.32 or later.
152.0.4191.66 vs 152.0.4191.65
Microsoft Edge 152.0.4191.66, released 4 Sep 2026, fixed 10 security flaws, one already used in attacks. Microsoft Edge 152.0.4191.65 fixes 3 security flaws and includes the fixes before it, so going straight to 152.0.4191.65 gets you both.
- Before: Microsoft Edge 152.0.4191.66, 4 Sep 2026, 10 security flaws
- After: Microsoft Edge 153.0.4234.32, 10 Sep 2026, 231 security flaws
- Microsoft Edge updates, every release and the latest version
- Updates, the latest version of everything HARD tracks
References
- ^ Microsoft. “Microsoft Edge security release notes, September 8, 2026”, 8 Sep 2026.