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01 Record

CVE-2026-58390

OPNsense: Stored XSS to root RCE via OpenVPN client common_name in status views

HighPUBLISHEDCNA: GitHub_M
CNA base score8.0 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

02 Description

OPNsense: Stored XSS to root RCE via OpenVPN client common_name in status views

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 48.5% of scored records. A rank, not a probability.
NVD base score
8.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-10-20.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-15 15:21Z13 DAYS AGO
Last updated
2026-10-20 02:44Z9 DAYS AGO
Reserved
2026-06-30
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.2
Document digest
544f2de63a1498d904179e080e9c3d82fca0fae7d78687f035ed0379d7f95666

05 Affected products

VendorProductVersionsPlatforms
opnsensecore< 26.1.11—

06 References