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CVE-2026-50575— BetterDesk has a replay behavior vulnerability when devices are deleted

Quick assessment

Affected
UNITRONIX BetterDesk
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

BetterDesk 是一款远程桌面管理解决方案。BetterDesk 2.3.0 及更早版本在处理已删除的设备标识时存在逻辑缺陷，未正确使其失效，从而导致未经身份验证的攻击者可以重放（replay）或伪造设备标识，从而绕过注册控制机制。版本 3.0.0-alpha 中已包含修复补丁。目前尚无已知的临时解决方案。

CVSS 7.7 · High EPSS 0.17% · P7

Affected Version Matrix 1

VendorProduct Version RangeStatus
UNITRONIX BetterDesk < 3.0.0-alpha affected
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I. Basic Information for CVE-2026-50575

Vulnerability Information
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Vulnerability Title
BetterDesk has a replay behavior vulnerability when devices are deleted
Source: CVE Program / CVE List V5
Vulnerability Description
BetterDesk is a remote desktop management solution. BetterDesk versions through 2.3.0 improperly invalidate deleted device identities, allowing an unauthenticated client to replay or spoof a device ID and bypass registration controls. Version 3.0.0-alpha contains a patch. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
UNITRONIX BetterDesk < 3.0.0-alpha -

II. Public POCs for CVE-2026-50575

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7589 chars
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III. Intelligence Information for CVE-2026-50575

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Patches & Fixes for CVE-2026-50575 (1)

Vendor Advisories for CVE-2026-50575 (1)

IV. Related Vulnerabilities

Same weakness: CWE-294

V. Comments for CVE-2026-50575

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