Unrated

Unauthenticated Arbitrary File Read in Citrix NetScaler ADC and NetScaler Gateway Management Interfaces

IdentifiersCVE-2026-10816CWE-73

CVE-2026-10816 is an unauthenticated arbitrary file read vulnerability affecting Citrix NetScaler ADC and NetScaler Gateway. The issue is described as external control of a file name or path (CWE-73), allowing attacker-controlled path input to be used to read files from the appliance. Exploitation is possible when access to the NSIP, Cluster Management IP, or a SNIP with management access enabled is exposed. The flaw does not require authentication and can allow retrieval of arbitrary files from the affected system via management-accessible interfaces.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an unauthenticated remote attacker to read arbitrary files from the affected NetScaler appliance. Depending on the files accessible to the vulnerable component, this can expose sensitive configuration data, credentials, keys, tokens, system information, or other internal files useful for follow-on compromise, privilege escalation, or lateral movement. The issue affects confidentiality directly; no direct integrity or code-execution impact is stated in the provided material.

Mitigation

If you can’t patch tonight, do this now.

Restrict, disable, or otherwise prevent unnecessary access to the NSIP, Cluster Management IP, and any SNIP with management access enabled, especially from untrusted networks, until fixed builds are deployed. Review appliance configuration to determine whether management access is enabled on these interfaces and reduce exposure through network ACLs, segmentation, or administrative access restrictions.

Remediation

Patch, then assume compromise.

Upgrade affected systems to fixed Citrix builds: NetScaler ADC and NetScaler Gateway 14.1-72.61 or later; NetScaler ADC and NetScaler Gateway 13.1-63.18 or later in the 13.1 branch; NetScaler ADC 14.1-FIPS 14.1-72.61 FIPS or later; and NetScaler ADC 13.1-FIPS / 13.1-NDcPP 13.1-37.272 or later. Apply the vendor security bulletin updates across all affected appliances.

PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.

VALID 0 / 1 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

Citrix SystemsNetscaler Adcapplication

Citrix SystemsNetscaler Gatewayapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

9 SOURCESView more in app

cyber security newsNews

Jul 1, 2026

Multiple Citrix NetScaler ADC and Gateway Vulnerabilities Enables DoS and Memory Overflow Attacks

A high-severity vulnerability in Citrix NetScaler ADC and NetScaler Gateway related to improper memory handling and insufficient input validation that can be exploited to cause denial-of-service or memory overflow conditions.

security weekNews

Jul 1, 2026

Citrix Patches NetScaler Vulnerabilities, Including New ‘HTTP/2 Bomb’ Attack - SecurityWeek

A NetScaler out-of-bounds read vulnerability fixed by Citrix; the article inconsistently describes it once among high-severity issues and again as a medium-severity out-of-bounds read.

the hacker newsNews

Jul 1, 2026

Citrix Patches Six NetScaler Flaws Allowing File Read and Denial-of-Service

A path/file-name control vulnerability in Citrix NetScaler that can allow unauthenticated arbitrary file read when management access is enabled on certain interfaces.

malware newsNews

Jun 30, 2026

Citrix security advisory (AV26-645) - Malware News - Malware Analysis, News and Indicators

A critical vulnerability addressed by Citrix in NetScaler ADC, NetScaler Gateway, and related FIPS/NDcPP editions.

+1 more in the timeline

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2026-10816

NVD

nvd.nist.gov/vuln/detail/CVE-2026-10816

MITRE CWE · CWE-73

cwe.mitre.org