CVE-2026-97830 Windows Internet Information Services - Denial of Service

Windows Internet Information Services contains a double free vulnerability caused by improper memory management, letting unauthorized attackers cause denial of service remotely, exploit requires network access.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.89% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-415

Vendor fix

Update to the latest version of Windows Internet Information Services.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs