CVE-2026-62870 — HIGH (8.8)

Vulnerability Description

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-416

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62870

FAQ

What is CVE-2026-62870?

CVE-2026-62870 is a vulnerability with a CVSS score of 8.8 (HIGH). Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

How severe is CVE-2026-62870?

CVE-2026-62870 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-62870?

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