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TI-2026-78786 Aliases CVE-2026-114405GHSA-f334-8hf4-fmpm

Denial of service via malformed VATP packet in Velneo vServer

Priority MEDIUM 44CWE-129Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-129 and the CVSS impact.

Summary

Velneo vServer from 36.0 before 36.6 and from 37.0 before 37.2 does not properly validate an array index. A remote attacker without authentication can send a malformed VATP packet to crash the service, causing a denial of service (CWE-129).

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Improper validation of array index vulnerability in Velneo vServer. This issue affects vServer: from 36.0 before 36.6 and from 37.0 before 37.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00344 28th percentileScored 2026-11-07
Fix Fixed vServer (Velneo): 36.6, 37.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
VelneovServer36.0 to before 36.6; 37.0 to before 37.236.6, 37.2Patch availableCNA
  • vServer VendorVelneo Affected 36.0 to before 36.6; 37.0 to before 37.2 Fixed in 36.6, 37.2 Patch available CNA

Remediation

Upgrade Velneo vServer to version 36.6 or 37.2.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA vServer (Velneo) Fixed in 36.6, 37.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Velneo vServer — velneo.es/avisos-de-seguridad

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-78875 Velneo vServer HTTP Server follows symlinks to read arbitrary filesPriority LOW 27
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114405
  2. 2026-10-21 Alias added: GHSA-f334-8hf4-fmpm
  3. 2026-10-21 CISA SSVC decision points changed

References

Patch 1

  • TI-2021-20386 Velneo vClient improper authentication CVSS 3.1HIGH 8.7
  • TI-2021-20385 Velneo vClient Improper authentication CVSS 3.1MEDIUM 6.3
  • TI-2026-78875 Velneo vServer HTTP Server follows symlinks to read arbitrary files CVSS 4.0MEDIUM 6.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences