Is CVE-2026-23656 actively exploited?

CVE-2026-23656 has no public evidence of in-the-wild exploitation as of 2026-03-11.

What is the CVSS score for CVE-2026-23656?

CVE-2026-23656 has a CVSS score of 5.9 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

Patch guidance is available from Microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-23656.

1 product: Microsoft Awaiting Analysis.

Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.

Primary Vendor: MICROSOFT
Published: 3/10/2026
Last Modified: 3/11/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.