CVE-2026-30785: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), Use of Password Has

Q: How do I fix CVE-2026-30785?

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

Q: Is CVE-2026-30785 being exploited?

CVE-2026-30785 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-2026-30785 affect?

CVE-2026-30785 affects rustdesk. Severity is medium (CVSS 5.5). Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), Use of Password Hash With Insufficient Computational Effort vulnerability in rustdesk-client RustDesk Client rustdesk, hbb_common on Windows, MacOS,

Q: How urgent is CVE-2026-30785?

Priority 24/100. Public exploit reference

Routine

MEDIUM 5.5UPGRADE

CVE-2026-30785 is a medium-severity flaw (CVSS 5.5) affecting rustdesk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), Use of Password Hash With Insufficient Computational Effort vulnerability in rustdesk-client RustDesk Client rustdesk, hbb_common on Windows, MacOS, Linux (Password security module, config encryption, machine UID modules) allows Retrieve Embedded Sensitive Data. This vulnerability is associated with program files hbb_common/src/password_security.Rs, hbb_com

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 100%)
CISA exploited list	No
Weakness	CWE-257, CWE-323, CWE-916, CWE-1321
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 16:16 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-2026-30785?

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

Is CVE-2026-30785 being exploited?

CVE-2026-30785 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-2026-30785 affect?

CVE-2026-30785 affects rustdesk. Severity is medium (CVSS 5.5). Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), Use of Password Hash With Insufficient Computational Effort vulnerability in rustdesk-client RustDesk Client rustdesk, hbb_common on Windows, MacOS,

How urgent is CVE-2026-30785?

Priority 24/100. Public exploit reference

Software pages

Windows vulnerabilities · macOS vulnerabilities

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References

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