---
id: CVE-2026-73242
title: FreeRDP is a free implementation of the Remote Desktop Protocol
summary: >-
  FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to
  3.30.0, FreeRDP's winpr/libwinpr/sspi/Kerberos/kerberos.c
  kerberos_DecryptMessage function fails to bound the peer-controlled GSS
  Wrap-token EC field before using …
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-122
  - CWE-125
vendor: freerdp
product: freerdp
affected:
  - freerdp < 3.30.0
patched:
  - freerdp 3.30.0
published: '2026-08-11'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:59:03.327'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73242'
references:
  - url: >-
      https://github.com/FreeRDP/FreeRDP/commit/0adf5e30d01be84e190a359a7bdd37bc51d740cc
    label: security-advisories@github.com
  - url: 'https://github.com/FreeRDP/FreeRDP/pull/13065'
    label: security-advisories@github.com
  - url: 'https://github.com/FreeRDP/FreeRDP/releases/tag/3.30.0'
    label: security-advisories@github.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v'
    label: security-advisories@github.com
  - url: 'https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vv64-95pc-vj9v'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73242.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-73242'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2514346'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-73242'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73242'
  - url: 'https://access.redhat.com/errata/RHSA-2026:68706'
  - url: 'https://access.redhat.com/errata/RHSA-2026:61378'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00443
epssPercentile: 0.3589
scores:
  nvd: 9.1
  vendor: 6.4
ingestedAt: '2026-09-09T21:22:45.529Z'
---

## Overview

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP's winpr/libwinpr/sspi/Kerberos/kerberos.c kerberos_DecryptMessage function fails to bound the peer-controlled GSS Wrap-token EC field before using it with RRC in IOV pointer offsets, allowing a malicious RDP peer to trigger out-of-bounds reads and in-place writes during CredSSP/NLA Kerberos decryption. This issue is fixed in version 3.30.0.

## Affected

- `freerdp < 3.30.0`

## Remediation

Upgrade past the affected range:

- `freerdp 3.30.0`

## Vendor advisories

- **RHSA-2026:68706** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-09-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:68706)
- **RHSA-2026:61378** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61378)