CVE-2026-85899 — HIGH (8.1)

Vulnerability Description

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-416

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85899

FAQ

What is CVE-2026-85899?

CVE-2026-85899 is a vulnerability with a CVSS score of 8.1 (HIGH). Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network.

How severe is CVE-2026-85899?

CVE-2026-85899 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-85899?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.