What’s Vulnerable › Vulnerabilities

CVE-2025-4478: Gnome-remote-desktop: freerdp: unauthenticated rdp packet causes segfault in freerdp leading to denial of service

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-16 · updated 2026-06-30
• Weakness: CWE-476

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.

Affected products

• FreeRDP: from 3.0.0 before 3.16.0 — fixed in 3.16.0
• Red Hat Enterprise Linux: 10.0

How to fix

Upgrade to a fixed version: FreeRDP 3.16.0. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2025:9307
• https://access.redhat.com/security/cve/CVE-2025-4478
• https://bugzilla.redhat.com/show_bug.cgi?id=2365232
• https://github.com/FreeRDP/FreeRDP/pull/11573

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