CVE-2026-65804Important
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Assessment
Improper control of generation of code ('code injection') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
- Severity
- Important
- CVSS base score
- 6.1CVSS:3.1/
AV:N/ AC:L/ PR:N/ UI:R/ S:C/ C:L/ I:L/ A:N/ E:U/ RL:O/ RC:C - Impact
- Spoofing
- EPSS, next 30 days
- 0.4%Higher than 33% 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-94: Improper Control of Generation of Code ('Code Injection')
- Issued by
- Microsoft
- Published
- 31 Jul 2026 · July 2026
- Last revised
- 31 Jul 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
Browser1 affected product
- Microsoft Edge (Chromium-based)