CVE-2026-92761 (GCVE-0-2026-92761)

Vulnerability from cvelistv5 – Published: 2026-09-16 20:32 – Updated: 2026-09-21 17:48
VLAI
Title
WebVirtCloud Missing Authorization on Instance Control Actions
Summary
WebVirtCloud fails to properly validate permission flags in UserInstance grants, allowing view-only users to perform privileged actions. Attackers with read-only grants can power off virtual machines, reset root passwords, install SSH keys, and manage ISO images by exploiting the get_instance gate that only checks grant existence.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 17:48 UTC
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7371 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
retspen webvirtcloud Affected: 1b2da68b2800f94674dd96f4a986cde30ac88280 (git)
guessed Create a notification for this product.
Date Public
2026-06-21 00:00
Credits
George Chen
Show details on NVD website
To clipboard 

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