CVE-2025-4365Public exploit

Arbitrary file read via unvalidated download path

Published Jun 17, 2025 · Updated Jun 17, 2025

Improper access control in NetScaler Console and SDX 13.1 and 14.1 allows remote authenticated users to read arbitrary files. The /nitro/v1/download endpoint accepts a caller-controlled file header and returns that path's contents without validating the path. Authenticated administrative access to the management interface is required, and exposed files can contain system credentials or other sensitive data.

CVSS severity6.9
Medium
EPSS probability9.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in NetScaler Console and SDX 13.1 and 14.1 allows remote authenticated users to read arbitrary files. The /nitro/v1/download endpoint accepts a caller-controlled file header and returns that path's contents without validating the path. Authenticated administrative access to the management interface is required, and exposed files can contain system credentials or other sensitive data.

The record

CVE
CVE-2025-4365
Published
Jun 17, 2025
Updated
Jun 17, 2025
Vendor
Cloud Software Group
Product
NetScaler SDX
Classifications
CWE-284, T1005
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13.1 <58.32
  2. Affected versionversion=14.1 <47.46

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Cloud Software Group · NetScaler SDXversion=13.1 <58.32; version=14.1 <47.46
Cloud Software Group · NetScaler Consoleversion=13.1 <58.32; version=14.1 <47.46

Published CVSS scores

6.9NetScalerCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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