CVE-2026-18265

Published Aug 20, 2026

Last updated 4 days ago

Overview

Description
OSNEXUS QuantaStor Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of OSNEXUS QuantaStor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of Kapacitor. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-30036.
Source
zdi-disclosures@trendmicro.com
NVD status
Received

Risk scores

CVSS 3.0

Type
Secondary
Base score
9.8
Impact score
5.9
Exploitability score
3.9
Vector string
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
CRITICAL

Weaknesses

zdi-disclosures@trendmicro.com
CWE-306

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.