Quick answers
- Is CVE-2026-119909 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-119909 being exploited in the wild.
- How severe is CVE-2026-119909?
- Medium severity, with a CVSS score of 5.9, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Internet Information Services.
- Is there a fix for CVE-2026-119909?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-119909 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-119909?
- Check whether you run Microsoft Internet Information Services. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
This vulnerability involves uncontrolled resource consumption in Windows IIS, allowing remote denial of service without authentication. An attacker can send crafted network requests to exhaust server resources (CPU, memory, or connections), rendering the service unavailable. The vulnerability requires network access but no prior authentication or user interaction.
Affected products
- Microsoft Internet Information Services
Timeline
- 2026-11-10: disclosed