Vulnerability · Published Feb 20, 2026 · Assigned by zdi

CVE-2026-2490RustDesk Client for Windows Transfer File Link Following Information Disclosure Vulnerability

Medium 5.5

In plain English

A medium-severity security flaw in Client for Windows from RustDesk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.0)5.5Medium

Exploit odds (30 days)0.4%top 70.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
RustDesk	Client for Windows	1.4.1

Weakness: CWE-59 · Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

ZDI-26-117 x_research-advisory
vendor-provided URL vendor-advisory