by Kastro
Paper/Archive/CVE-2026-18265

CVE-2026-18265

OSNEXUS QuantaStor — OSNEXUS QuantaStor Missing Authentication Remote Code Execution Vulnerability

EPSS 1%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 64.0.640 × 2012.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
QuantaStor6.7.3.010+9c965a6414–CNA

Scores by source

zdi (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refzerodayinitiative.com/advisories/ZDI-26-480