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Vulnerability record · CVE-2026-97830 · published 13 October 2026

CVE-2026-97830: Microsoft windows 11 23h2 double free vulnerability

Microsoft · Windows 11 23h2

Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.

7.5 CVSS 3.1 High EPSS 0.87% · top 42.1% CWE-415 · Double free
7.5CVSS 3.1 base score
0.87%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
1References
14 Oct 2026Last modified by NVD

Description

Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.

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

Affected products

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

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97830 Vendor Advisory

Track CVE-2026-97830 inside VULONE

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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-2026-97830), CISA KEV, FIRST EPSS (scores of 2026-10-15). This page is refreshed as NVD updates the record.