How severe is CVE-2026-30797?

CVE-2026-30797 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-30797 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30797?

CVE-2026-30797 affects Rustdesk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30797?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-30797 have an EU (EUVD) identifier?

Yes. CVE-2026-30797 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9837.

When was CVE-2026-30797 published?

CVE-2026-30797 was published on 2026-03-05 and last updated on 2026-06-17.

CVE-2026-30797

CVE-2026-30797 is a high-severity vulnerability in Rustdesk with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-749.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 9.3
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9837
Weakness: CWE-749
Affected product: Rustdesk
Published: 2026-03-05
Last modified: 2026-06-17

Description

Missing Authorization vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Flutter URI scheme handler, config import modules) allows Application API Message Manipulation via Man-in-the-Middle. This vulnerability is associated with program files flutter/lib/common.Dart and program routines importConfig() via URI handler. This issue affects RustDesk Client: through 1.4.5.

Frequently asked questions

What is CVE-2026-30797?: Missing Authorization vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Flutter URI scheme handler, config import modules) allows Application API Message Manipulation via Man-in-the-Middle. This vulnerability is associated with program files flutter/lib/common.Dart and program routines importConfig() via URI handler. This issue affects RustDesk Client: through 1.4.5.
How severe is CVE-2026-30797?: CVE-2026-30797 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-30797 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30797?: CVE-2026-30797 affects Rustdesk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30797?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-30797 have an EU (EUVD) identifier?: Yes. CVE-2026-30797 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9837.
When was CVE-2026-30797 published?: CVE-2026-30797 was published on 2026-03-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:*

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