CVE-2026-50575: CWE-294: Authentication Bypass by Capture-replay in UNITRONIX BetterDesk
UNITRONIX BetterDesk versions through 2.3.0 contain an authentication bypass vulnerability due to improper invalidation of deleted device identities. This flaw allows an unauthenticated client to replay or spoof a device ID and bypass registration controls. A patch is included in version 3.0.0-alpha. No known workarounds exist.
AI Analysis
Technical Summary
CVE-2026-50575 affects UNITRONIX BetterDesk, a remote desktop management solution. Versions up to 2.3.0 improperly invalidate deleted device identities, enabling unauthenticated attackers to replay or spoof device IDs to bypass registration controls. This vulnerability is categorized under CWE-294 (Authentication Bypass), CWE-345 (Insufficient Verification of Data Authenticity), and CWE-672 (Operation on a Resource After Expiration or Release). The issue is fixed in version 3.0.0-alpha. There are no known mitigations or workarounds besides upgrading.
Potential Impact
The vulnerability allows unauthenticated attackers to bypass authentication and registration controls by replaying or spoofing device IDs. This can lead to unauthorized access with high confidentiality and integrity impact, and a low impact on availability. The CVSS 3.1 score is 7.7 (High), reflecting network attack vector, high complexity, no privileges required, no user interaction, and significant confidentiality and integrity impact.
Mitigation Recommendations
A patch is available in BetterDesk version 3.0.0-alpha. Users should upgrade to this version or later to remediate the vulnerability. No other workarounds or temporary fixes are currently known.
CVE-2026-50575: CWE-294: Authentication Bypass by Capture-replay in UNITRONIX BetterDesk
Description
UNITRONIX BetterDesk versions through 2.3.0 contain an authentication bypass vulnerability due to improper invalidation of deleted device identities. This flaw allows an unauthenticated client to replay or spoof a device ID and bypass registration controls. A patch is included in version 3.0.0-alpha. No known workarounds exist.
CVSS v3.1
Score 7.7high
Affected software
pkg:github/unitronix/BetterDeskRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-50575 affects UNITRONIX BetterDesk, a remote desktop management solution. Versions up to 2.3.0 improperly invalidate deleted device identities, enabling unauthenticated attackers to replay or spoof device IDs to bypass registration controls. This vulnerability is categorized under CWE-294 (Authentication Bypass), CWE-345 (Insufficient Verification of Data Authenticity), and CWE-672 (Operation on a Resource After Expiration or Release). The issue is fixed in version 3.0.0-alpha. There are no known mitigations or workarounds besides upgrading.
Potential Impact
The vulnerability allows unauthenticated attackers to bypass authentication and registration controls by replaying or spoofing device IDs. This can lead to unauthorized access with high confidentiality and integrity impact, and a low impact on availability. The CVSS 3.1 score is 7.7 (High), reflecting network attack vector, high complexity, no privileges required, no user interaction, and significant confidentiality and integrity impact.
Mitigation Recommendations
A patch is available in BetterDesk version 3.0.0-alpha. Users should upgrade to this version or later to remediate the vulnerability. No other workarounds or temporary fixes are currently known.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-04T21:34:34.427Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a846308c6e8be0332487b3a
Added to database: 08/18/2026, 13:50:00 UTC
Last enriched: 08/18/2026, 14:04:24 UTC
Last updated: 08/18/2026, 14:09:37 UTC
Views: 5
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