CVE-2021-45036 json
Velneo vClient improper authentication
published 2022-11-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31833
- cvss
- 8.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
Velneo vClient on its 28.1.3 version, could allow an attacker with knowledge of the victims's username and hashed password to spoof the victim's id against the server.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
- Velneo Velneo vClient
Classification
References
-
velneo.com
/blog/disponible-la-nueva-version-velneo-32
release-notes, vendor-advisory
-
doc.velneo.com
/v/32/velneo/notas-de-la-version#mejoras-de-seguridad-en-validacion-de-usuario-y-contrasena
release-notes, vendor-advisory
-
velneo.es
/mivelneo/listado-de-cambios-velneo-32/
release-notes, vendor-advisory
-
doc.velneo.com
/v/32/velneo/notas-de-la-version#a-partir-de-esta-version-todos-los-servidores-arrancaran-con-protocolo-vatps
vendor-advisory
-
doc.velneo.com
/v/32/velneo-vserver/funcionalidades/protocolo-vatps
vendor-advisory
-
doc.velneo.com
/v/32/velneo/funcionalidades-comunes/conexion-con-velneo-vserver
vendor-advisory
- incibe.es /en/incibe-cert/notices/aviso/velneo-vclient-improper-authentication-0
Sources
- CVE List CVE-2021-45036
- NVD CVE-2021-45036
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.