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Vulnerability record · CVE-2026-21219 · published 13 January 2026

CVE-2026-21219: Microsoft windows software development kit use after free vulnerability

Microsoft · Windows Software Development Kit

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

7.0 CVSS 3.1 High EPSS 0.38% · top 70.8% CWE-416 · Use after free
7.0CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-21219), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.