CVE-2026-50575Public exploitNetwork attack vector

Authentication bypass via deleted device ID replay

Published Aug 18, 2026 · Updated Aug 18, 2026

Authentication bypass in UNITRONIX BetterDesk before 3.0.0-alpha allows remote attackers to register a rogue device via spoofed IDs. The registration path treated a soft-deleted peer ID as previously known, and the UpsertPeer conflict handler cleared soft_deleted and deleted_at, letting a re-registration resurrect the record and overwrite the stored Ed25519 public key. Reachability is network-based and unauthenticated, but exploitation requires knowledge of a deleted device ID; a successful replay can impersonate the former device and regain server access under its identity.

CVSS severity7.7
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in UNITRONIX BetterDesk before 3.0.0-alpha allows remote attackers to register a rogue device via spoofed IDs. The registration path treated a soft-deleted peer ID as previously known, and the UpsertPeer conflict handler cleared soft_deleted and deleted_at, letting a re-registration resurrect the record and overwrite the stored Ed25519 public key. Reachability is network-based and unauthenticated, but exploitation requires knowledge of a deleted device ID; a successful replay can impersonate the former device and regain server access under its identity.

The record

CVE
CVE-2026-50575
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
UNITRONIX
Product
BetterDesk
Classifications
CWE-294, CWE-672, CWE-345
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.0.0-alpha

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

UNITRONIX · BetterDeskversion=< 3.0.0-alpha

Published CVSS scores

7.7GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-294Authentication Bypass by Capture-replay
CWE-672Operation on a Resource after Expiration or Release
CWE-345Insufficient Verification of Data Authenticity

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo