---
id: "CVE-2026-114164"
page: "https://infrastack.ai/live/CVE-2026-114164"
kind: "vulnerability"
aliases: ["CVE-2026-114164"]
title: "Windows Codecs Library: integer underflow lets a network attacker run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "Windows Codecs Library", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["infrastructure", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:19:09+00:00"
first_seen_at: "2026-11-10T19:24:44+00:00"
updated_at: "2026-11-10T19:30:35+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-114164", "first_seen_at": "2026-11-10T19:24:44+00:00"}]
exploit_sources: []
---

# Windows Codecs Library: integer underflow lets a network attacker run code

Link for people: https://infrastack.ai/live/CVE-2026-114164 (this .md is for agents)

Microsoft's Windows Codecs Library has an integer underflow, a math error that wraps a value around. An unauthenticated attacker over the network can use it to execute code.

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

## Affected

- vendor:Windows Codecs Library affected range not listed fixed no fixed version listed

## Timeline

- 2026-11-10T19:24:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-114164

## From the sources

Integer underflow (wrap or wraparound) in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.

---

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