High severity · published Oct 27, 2026
CVE-2026-85898
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
New
8.8
CVSS
–
EPSS
No
On KEV
Description
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Microsoft Edge (Chromium-based) · Microsoft
1.0.0.0 before 154.0.4258.48 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85898
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85898
msrc.microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85898
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