CVE-2026-70341Important
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Assessment
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.
- Severity
- Important
- CVSS base score
- 8.5CVSS:3.1/
AV:N/ AC:H/ PR:L/ UI:N/ S:C/ C:H/ I:H/ A:H/ E:U/ RL:O/ RC:C - Impact
- Remote Code Execution
- EPSS, next 30 days
- 0.7%Higher than 49.7% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
- Exploitability
- Exploitation Unlikely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- Microsoft Edge (Chromium-based)
- Weakness
- CWE-416: Use After Free
- Issued by
- Microsoft
- Published
- 28 Aug 2026 · August 2026
- Last revised
- 28 Aug 2026
Updates that fix it
0 KBsNo KB listed
MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.
Affected products
Browser5 affected products
- Microsoft Edge (Chromium-based)
- Microsoft Edge for Android
- Microsoft Edge for iOS
- Microsoft Edge for Linux
- Microsoft Edge for MAC