Local file disclosure via transfer symlink following
Published Feb 20, 2026 · Updated Feb 20, 2026
Link-following in RustDesk Client for Windows 1.4.1 allows local users to read arbitrary files through the Transfer File feature. The Windows server-side transfer path follows an uploaded symbolic link when reading files instead of confining reads to the submitted transfer path. Low-privileged code execution on the host is required, and successful exploitation discloses files readable as SYSTEM without modifying them.
Summary
What happened
Link-following in RustDesk Client for Windows 1.4.1 allows local users to read arbitrary files through the Transfer File feature. The Windows server-side transfer path follows an uploaded symbolic link when reading files instead of confining reads to the submitted transfer path. Low-privileged code execution on the host is required, and successful exploitation discloses files readable as SYSTEM without modifying them.
The record
- CVE
- CVE-2026-2490
- Published
- Feb 20, 2026
- Updated
- Feb 20, 2026
- Vendor
- RustDesk
- Product
- RustDesk
- Classifications
- CWE-59, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 20, 2026CVE publishedPublication date reported by the CVE source.
- Feb 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.4.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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