---
id: CVE-2026-109250
title: >-
  FreeRDP 3.0.0 before 3.32.0 contains a heap buffer overflow vulnerability in
  collect_keys() that allows local attackers to write past the fixed 64-entry
  keys array during PKCS#11 key enumeration
summary: >-
  FreeRDP 3.0.0 before 3.32.0 contains a heap buffer overflow vulnerability in
  collect_keys() that allows local attackers to write past the fixed 64-entry
  keys array during PKCS#11 key enumeration. Attackers controlling smartcard
  tokens ca…
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-129
  - CWE-787
vendor: Red Hat
product: Red Hat Enterprise Linux 10
affected:
  - enterprise_linux 10
published: '2026-10-12'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T15:54:26.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109250'
references:
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jhv5-m83m-hxhq'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-heap-buffer-overflow-via-pkcs-11-collect-keys
    label: disclosure@vulncheck.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-jhv5-m83m-hxhq'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109250.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-109250'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2549830'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-109250'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109250'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - exploit-available
epss: 0.00249
epssPercentile: 0.1612
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-13T18:01:30.910192Z'
ingestedAt: '2026-10-12T18:00:08.176Z'
---

## Overview

FreeRDP 3.0.0 before 3.32.0 contains a heap buffer overflow vulnerability in collect_keys() that allows local attackers to write past the fixed 64-entry keys array during PKCS#11 key enumeration. Attackers controlling smartcard tokens can present more than 64 public key objects across multiple slots to corrupt heap memory with attacker-chosen CKA_ID and CKA_LABEL data during smartcard logon.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-13 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109250.json)