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Description

RustDesk Client for Windows Transfer File Link Following Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of RustDesk Client for Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Transfer File feature. By uploading a symbolic link, an attacker can abuse the service to read arbitrary files. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-27909.

PUBLISHED Reserved 2026-02-13 | Published 2026-02-20 | Updated 2026-02-24 | Assigner zdi




MEDIUM: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-59: Improper Link Resolution Before File Access ('Link Following')

Product status

Default status
unknown

1.4.1
affected

References

www.zerodayinitiative.com/advisories/ZDI-26-117/ (ZDI-26-117)

github.com/rustdesk/rustdesk/pull/13736 (vendor-provided URL) vendor-advisory

cve.org (CVE-2026-2490)

nvd.nist.gov (CVE-2026-2490)

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