---
id: "CVE-2026-100204"
page: "https://infrastack.ai/live/CVE-2026-100204"
kind: "vulnerability"
aliases: ["CVE-2026-100204"]
title: "HEIF Image Extensions: use-after-free lets a local attacker run code"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "other"
products: [{"name": "HEIF Image Extensions", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["heif-image-extensions", "other", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:17:39+00:00"
first_seen_at: "2026-11-10T19:24:12+00:00"
updated_at: "2026-11-10T19:54:21+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100204", "first_seen_at": "2026-11-10T19:24:12+00:00"}]
exploit_sources: []
---

# HEIF Image Extensions: use-after-free lets a local attacker run code

Link for people: https://infrastack.ai/live/CVE-2026-100204 (this .md is for agents)

HEIF Image Extensions has a use-after-free memory bug. A local attacker with no authorization can use it to execute code on the machine.

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

## Affected

- vendor:HEIF Image Extensions affected range not listed fixed no fixed version listed

## Timeline

- 2026-11-10T19:24:12+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-100204

## From the sources

Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.

---

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