6.5

CVE-2025-4478: freerdp NULL Pointer Dereference

CVSS: 6.5v3.1MediumModified
AliasesRHSA-2025:9307UBUNTU-CVE-2025-4478USN-7624-1
Published 16-05-2025Last modified 30-06-2026
Open JSON

Vulnerability summary

CVE-2025-4478 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in freerdp. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.3% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.54%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 4
OPENSUSE-SU-2026:10123-1OPENSUSE-SU-2026:20339-1SUSE-SU-2026:0345-1CGA-G9P4-V552-CCR9

Timeline

  1. 16-05-2025
    PublishedVulnerability first disclosed.
  2. 30-06-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

+0.02 pp

From 0.52% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat12 products
  • enterprise_linux10.0
  • freerdp< 2:3.10.3-3.el10_0
  • freerdp-debuginfo< 2:3.10.3-3.el10_0
  • freerdp-debugsource< 2:3.10.3-3.el10_0
  • freerdp-devel< 2:3.10.3-3.el10_0
Chainguard1 product
  • freerdp-devAll versions (No fix recorded)
Debian1 product
  • freerdp3< 3.15.0+dfsg-2.1
Freerdp1 product
Ubuntu1 product
  • freerdp3< 3.5.1+dfsg1-0ubuntu1.1
Wolfi1 product
  • freerdp-devAll versions (No fix recorded)

6 vendors · 17 products

References

14 links
Show all 14 references