Quick answers
- Is CVE-2026-30783 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-30783 being exploited in the wild.
- How severe is CVE-2026-30783?
- Critical severity, with a CVSS score of 9.8, published 5 March 2026.
- Which products and versions are affected?
- RustDesk Client through 1.4.8.
- Is there a fix for CVE-2026-30783?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-30783 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-30783?
- Check whether you run Apple Iphone Os, Apple macOS, Google Android or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A vulnerability in the RustDesk Client (specifically within the API sync loop and strategy management modules) allows for unauthenticated remote strategy injection. The root cause is located in 'src/hbbs_http/sync.rs' and 'hbb_common/src/config.rs', where the client blindly merges strategy configurations from a server without verifying the local 'allow-remote-config-modification' toggle. An attacker operating a rogue API server or performing a Man-in-the-Middle (MiTM) attack can override local security policies, clear IP whitelists, escalate access modes from view-only to full-control, and re-enable disabled features like file transfer or terminal access. This issue affects all native Flutter-based clients through version 1.4.8.
Affected products
- RustDesk RustDesk Client through 1.4.8
Timeline
- 2026-03-05: disclosed: Initial vulnerability discovery and publication
- 2026-06-22: advisory: Updated advisory confirming impact through version 1.4.8