CVE-2026-73102Network attack vector

Arbitrary file write via unvalidated clipboard paths

Published Aug 26, 2026 · Updated Aug 26, 2026

Path traversal in RustDesk 1.3.9 through 1.4.9 allows remote authenticated users to write files outside the paste directory on macOS. The macOS clipboard paste task joins peer-supplied descriptor names to the selected target directory without rejecting absolute or parent-relative paths. An active clipboard file-paste session is required, and writes remain limited to locations accessible to the RustDesk process.

CVSS severity6.9
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in RustDesk 1.3.9 through 1.4.9 allows remote authenticated users to write files outside the paste directory on macOS. The macOS clipboard paste task joins peer-supplied descriptor names to the selected target directory without rejecting absolute or parent-relative paths. An active clipboard file-paste session is required, and writes remain limited to locations accessible to the RustDesk process.

The record

CVE
CVE-2026-73102
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
RustDesk
Product
RustDesk
Classifications
CWE-22, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 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.

  1. Affected versionversion=1.3.9 <=1.4.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

RustDesk · RustDeskversion=1.3.9 <=1.4.9

Published CVSS scores

5.7VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
6.9VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1105Ingress Tool Transfer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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