CVE-2025-4478: NULL Pointer Dereference
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.
AI Analysis
Technical Summary
CVE-2025-4478 is a denial of service vulnerability in FreeRDP where an unauthenticated RDP packet can cause a segmentation fault (CWE-476: NULL pointer dereference). This affects the xfreerdp client used to connect to RDP servers. Red Hat has issued a security advisory (RHSA-2025:9307) for Red Hat Enterprise Linux 10, providing an update to mitigate this issue. The advisory rates the impact as moderate and references updated freerdp packages for multiple architectures and extended update support versions of RHEL 10.
Potential Impact
Successful exploitation of this vulnerability results in a denial of service condition due to a segmentation fault in FreeRDP triggered by an unauthenticated RDP packet. This could disrupt remote desktop connectivity for affected systems running vulnerable versions of freerdp on Red Hat Enterprise Linux 10. There is no indication of code execution or privilege escalation from the provided data.
Mitigation Recommendations
Red Hat has released an updated freerdp package for Red Hat Enterprise Linux 10 that addresses this vulnerability. Users should apply the official Red Hat update as described in the advisory RHSA-2025:9307 and the referenced article https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the issue. No additional mitigation steps are indicated or required.
CVE-2025-4478: NULL Pointer Dereference
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 v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-4478 is a denial of service vulnerability in FreeRDP where an unauthenticated RDP packet can cause a segmentation fault (CWE-476: NULL pointer dereference). This affects the xfreerdp client used to connect to RDP servers. Red Hat has issued a security advisory (RHSA-2025:9307) for Red Hat Enterprise Linux 10, providing an update to mitigate this issue. The advisory rates the impact as moderate and references updated freerdp packages for multiple architectures and extended update support versions of RHEL 10.
Potential Impact
Successful exploitation of this vulnerability results in a denial of service condition due to a segmentation fault in FreeRDP triggered by an unauthenticated RDP packet. This could disrupt remote desktop connectivity for affected systems running vulnerable versions of freerdp on Red Hat Enterprise Linux 10. There is no indication of code execution or privilege escalation from the provided data.
Mitigation Recommendations
Red Hat has released an updated freerdp package for Red Hat Enterprise Linux 10 that addresses this vulnerability. Users should apply the official Red Hat update as described in the advisory RHSA-2025:9307 and the referenced article https://access.redhat.com/articles/11258. Since this is an official fix, applying the update fully mitigates the issue. No additional mitigation steps are indicated or required.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:9307
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a3da1cd4853345fc1823920
Added to database: 06/25/2026, 21:46:53 UTC
Last enriched: 06/25/2026, 22:06:17 UTC
Last updated: 07/07/2026, 22:28:17 UTC
Views: 6
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