---
id: "CVE-2026-119936"
page: "https://infrastack.ai/live/CVE-2026-119936"
kind: "vulnerability"
aliases: ["CVE-2026-119936"]
title: "Windows IIS: integer underflow lets unauthenticated network attacker deny service"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["iis", "infrastructure", "web-server", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:20:15+00:00"
first_seen_at: "2026-11-10T19:25:03+00:00"
updated_at: "2026-11-10T20:00:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119936", "first_seen_at": "2026-11-10T19:25:03+00:00"}]
exploit_sources: []
---

# Windows IIS: integer underflow lets unauthenticated network attacker deny service

Link for people: https://infrastack.ai/live/CVE-2026-119936 (this .md is for agents)

Windows Internet Information Services has an integer underflow that an unauthorized attacker can trigger over the network. The result is a denial of service, not code execution or data theft.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T19:25:03+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119936

## From the sources

Integer underflow (wrap or wraparound) in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_