CVE-2026-18265: critical vulnerability in OSNEXUS QuantaStor
OSNEXUS QuantaStor Missing Authentication Remote Code Execution Vulnerability
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 1.0%
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
OSNEXUS · QuantaStorRelated CVEs — OSNEXUS QuantaStor
In the same product, most dangerous first.
CVE-2021-42081CRITICALAuthenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.355EPSS 1.2%CVE-2021-4406CRITICALAuthenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and othersEPSS 1.0%CVE-2021-42080HIGHReflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355EPSS 0.7%CVE-2021-42079MEDIUMSSRF vulnerability in OSNEXUS QuantaStor before 6.0.0.355EPSS 0.7%CVE-2021-42083HIGHAuthenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335EPSS 0.5%CVE-2021-42082HIGHLocal Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355EPSS 0.2%