CVE-2026-100417
RustDesk before 1.5.0 One-Way File Transfer Bypass
rustdesk rustdesk
CVSS
2.3LowExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 1.5.0rustdeskCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
RustDesk before 1.5.0 on Windows fails to enforce the one-way file transfer option against peer clipboard file requests, allowing authenticated peers to read files from the host clipboard. Attackers can send FormatDataRequest and FileContentsRequest messages to retrieve copied files by guessing the FileGroupDescriptorW format identifier.
Text from CVE List
Affected versions 1
- rustdeskaffected: all versions before 1.5.0CVE List
References 6
- github.com/rustdesk/rustdesk/pull/16333Fixvia CVE List
- github.com/rustdesk/rustdesk/commit/f299fb9906006247863250d7dfaa016f29eef7a4Fixvia CVE List
- vulncheck.com/advisories/rustdesk-before-1.5.0-one-way-file-transfer-bypassAdvisoryvia CVE List
- github.com/rustdesk/rustdesk/blob/1.4.9/src/ui_cm_interface.rs#L618-L638Referencevia CVE List
- github.com/rustdesk/rustdesk/blob/1.4.9/libs/clipboard/src/windows/wf_cliprdr.c#L2728-L2770Referencevia CVE List
- github.com/rustdesk/rustdeskReferencevia CVE List