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🛡️ CVE-2026-30791 — rustdesk

🟠 CVSS 7.5 — High ⚠️ Exploit Public CWE-327 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, WebClient (Config import, URI scheme handler, CLI --config modules) allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program files flutter/lib/common.Dart, hbb_common/src/config.Rs and program routines parseRustdeskUri(), importConfig().

This issue affects RustDesk Client: through 1.4.5.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: None.

Weakness class

CVE-2026-30791 is classified as CWE-327: Use of a Broken or Risky Cryptographic Algorithm. An algorithm with known weaknesses is used, so the protection it appears to give does not hold.

Affected software

CVE-2026-30791 is recorded against 1 package.

  • rustdesk (fixed in 1.4.5)

Timeline and source

Published on 5 March 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

docs.google.com
rustdesk.com
www.vulsec.org

Other advisories for this package

rustdesk has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-327: Use of a Broken or Risky Cryptographic Algorithm) in other software:

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE CWE-327
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-05
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
rustdesk — 1.4.5

Similar Threats

Exploit Protection

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CVE-2026-30791 carries CVSS 7.5 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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