F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::FileUplink handling of Fw::FilePacket::StartPacket destination paths FileUplink copies the packet-controlled destinationPath and opens it for writing without canonicalization or confinement to an upload directory. When a peer able to send file-uplink packets supplies an absolute, traversing, or otherwise attacker-selected writable destination path, files can be created or overwritten at attacker-selected writable filesystem locations, affecting integrity and potentially availability. This issue is fixed in version 4.3.0.

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History

Wed, 14 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description F´ (F Prime) is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.3.0, Svc::FileUplink handling of Fw::FilePacket::StartPacket destination paths FileUplink copies the packet-controlled destinationPath and opens it for writing without canonicalization or confinement to an upload directory. When a peer able to send file-uplink packets supplies an absolute, traversing, or otherwise attacker-selected writable destination path, files can be created or overwritten at attacker-selected writable filesystem locations, affecting integrity and potentially availability. This issue is fixed in version 4.3.0.
Title F´: Arbitrary File Write in Svc::FileUplink via attacker-controlled StartPacket.destinationPath
Weaknesses CWE-22
CWE-73
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-14T16:28:18.673Z

Reserved: 2026-09-15T17:13:57.865Z

Link: CVE-2026-92153

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-10-14T17:20:21.150

Modified: 2026-10-14T17:20:21.150

Link: CVE-2026-92153

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses