BetterDesk has a replay behavior vulnerability when devices are deleted

published 2026-08-18 2 mo ago modified 2026-10-22 17 d ago also EUVD-2026-60763

cvss: 7.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

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.

Patch / fix

links 1

github.com/UNITRONIX/BetterDesk@f3b4df2 commit

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 mo ago (2026-08-18)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/UNITRONIX/BetterDesk/security/advisories/GHSA-3v82-3gf8-fxx8 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Affected products

UNITRONIX BetterDesk

Classification

Weakness

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

References

Sources

CVE List CVE-2026-50575
NVD CVE-2026-50575

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary