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Fencer Vulns
medium 6.5

CVE-2025-4478 json

Gnome-remote-desktop: freerdp: unauthenticated rdp packet causes segfault in freerdp leading to denial of service

published 2025-05-16 17 mo ago modified 2026-11-05 4 d ago also EUVD-2025-15458

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

A flaw was found in the FreeRDP used by Anaconda's remote install feature, where a crafted RDP packet could trigger a segmentation fault. This issue causes the service to crash and remain defunct, resulting in a denial of service. It occurs pre-boot and is likely due to a NULL pointer dereference. Rebooting is required to recover the system.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 2:3.10.3-3.el10_0
  • freerdp3 Debian 14, Debian 13 3.15.0+dfsg-2.1

debian advisories DEBIAN-CVE-2025-4478

  • freerdp3 Ubuntu 24.04 LTS 3.5.1+dfsg1-0ubuntu1.1

ubuntu advisories UBUNTU-CVE-2025-4478

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • freerdp RHEL 10.0 2:3.10.3-3.el10_0
  • libwinpr RHEL 10.0 2:3.10.3-3.el10_0
  • freerdp-libs RHEL 10.0 2:3.10.3-3.el10_0
  • freerdp-server RHEL 10.0 2:3.10.3-3.el10_0

red hat advisories RHSA-2025:9307

  • freerdp SLE Workstation Extension 15 SP7, SLE Module for Package Hub 15 SP7 3.10.3-150700.3.3.1

suse advisories SUSE-SU-2026:0345-1

  • freerdp openSUSE Leap 16.0 3.22.0-160000.1.1
  • freerdp openSUSE Tumbleweed 3.21.0-2.1

opensuse advisories openSUSE-SU-2026:20339-1openSUSE-SU-2026:10123-1

  • freerdp AlmaLinux 10 2:3.10.3-3.el10_0
  • libwinpr AlmaLinux 10 2:3.10.3-3.el10_0
  • freerdp-libs AlmaLinux 10 2:3.10.3-3.el10_0
  • freerdp-server AlmaLinux 10 2:3.10.3-3.el10_0

almalinux advisories ALSA-2025:9307

  • freerdp Rocky Linux 10 2:3.10.3-3.el10_0

rocky linux advisories RLSA-2025:9307

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-4478 updated cvss 6.5

gnome-remote-desktop: freerdp: Unauthenticated RDP Packet Causes Segfault in FreeRDP Leading to Denial of Service

  • Red Hat Enterprise Linux AppStream (v. 10) freerdp 3.10.3-3.el10_0, libwinpr 3.10.3-3.el10_0, freerdp-libs 3.10.3-3.el10_0 Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) freerdp-server 3.10.3-3.el10_0
    fixed: vendor fix RHSA-2025:9307
  • Red Hat Enterprise Linux 8 freerdp, libwinpr, freerdp-libs Red Hat Enterprise Linux 9 freerdp, libwinpr, freerdp-libs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.