CVE-2026-21219 — HIGH (7.0)

Q: What is CVE-2026-21219?

CVE-2026-21219 is a vulnerability with a CVSS score of 7.0 (HIGH). Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

Q: How severe is CVE-2026-21219?

CVE-2026-21219 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-21219?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Software Development Kit.

Vulnerability Description

Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

CVSS Score

7.0

HIGH

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows Software Development Kit	>= 10.0.26100, < 10.0.26100.7463

Related Weaknesses (CWE)

CWE-416

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21219Vendor Advisory

FAQ

What is CVE-2026-21219?

CVE-2026-21219 is a vulnerability with a CVSS score of 7.0 (HIGH). Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

How severe is CVE-2026-21219?

CVE-2026-21219 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21219?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Software Development Kit.