CVE-2026-30791: Use of a Broken or Risky Cryptographic Algorithm vulnerability in rustdesk-client RustDesk Client rustdesk-cli

Q: How do I fix CVE-2026-30791?

rustdesk: upgrade to newer than 1.4.5. Exact commands for each OS are on this page.

Q: Is CVE-2026-30791 being exploited?

CVE-2026-30791 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-30791 affect?

CVE-2026-30791 affects rustdesk. Severity is high (CVSS 7.5). 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 Em

Q: How urgent is CVE-2026-30791?

Priority 40/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-30791 is a high-severity flaw (CVSS 7.5) affecting rustdesk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-327, CWE-684
Published	2026-03-05
Last modified	2026-06-17

Publisher (CNA): VULSec Labs · Vendor: rustdesk

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-05 15:16 UTCPublished CVE record published
2026-06-17 10:32 UTCUpdated Record last modified

rustdesk rustdesk UPGRADE

Affected: <= 1.4.5

Fixed in: newer than 1.4.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rustdesk || rpm -q rustdesk || rustdesk --version

2. UPGRADE to newer than 1.4.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rustdesk

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rustdesk

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-30791?

rustdesk: upgrade to newer than 1.4.5. Exact commands for each OS are on this page.

Is CVE-2026-30791 being exploited?

CVE-2026-30791 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-30791 affect?

CVE-2026-30791 affects rustdesk. Severity is high (CVSS 7.5). 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 Em

How urgent is CVE-2026-30791?

Priority 40/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities · Android vulnerabilities · iOS vulnerabilities · macOS vulnerabilities · Flutter vulnerabilities

Related CVEs

CVE-2026-30792 HIGH 8.1 UPGRADE A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, Web
CVE-2026-30789 CRITICAL 9.8 UPGRADE Use of Password Hash With Insufficient Computational Effort, Improper Restriction of Excessive Authentication
CVE-2026-30783 CRITICAL 9.8 UPGRADE A vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android, Web
CVE-2026-30798 HIGH 7.5 UPGRADE Insufficient Verification of Data Authenticity, Improper Handling of Exceptional Conditions vulnerability in r
CVE-2026-30797 HIGH 8.1 UPGRADE Missing Authorization vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linu

References

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