CyberSecBulletin
CVE-2026-10816NVD status: Analyzed

ADC: Externally Controlled Reference to a Resource in Another Sphere

Published Updated By the CyberSecBulletin desk

CVE-2026-10816 is a high-severity externally controlled reference to a resource in another sphere vulnerability in ADC from NetScaler, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 72.61, 63.18, 37.272 as the first without the flaw, so updating ADC to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.58% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update ADC to 72.61 or 63.18 or 37.272, whichever matches your release line, or a later version.
  2. Update Gateway to 72.61 or 63.18, whichever matches your release line, or a later version.
  3. Update Netscaler Application Delivery Controller to 13.1-37.272 or 13.1-63.18 or 14.1-72.61, whichever matches your release line, or a later version.
  4. Read the advisory on support.citrix.com for workarounds and exact fixed builds.
  5. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
NetScalerADC14.1 up to, but not including, 72.61; 13.1 up to, but not including, 63.18; 14.1 FIPS up to, but not including, 72.61; 13.1 FIPS and NDcPP up to, but not including, 37.27272.61, 63.18, 37.272
NetScalerGateway14.1 up to, but not including, 72.61; 13.1 up to, but not including, 63.1872.61, 63.18
CitrixNetscaler Application Delivery Controllerbefore 13.1-37.272; 13.1 up to, but not including, 13.1-63.18; 14.1 up to, but not including, 14.1-72.61; 14.1-66.6813.1-37.272, 13.1-63.18, 14.1-72.61
CitrixNetscaler Gateway13.1 up to, but not including, 13.1-63.18; 14.1 up to, but not including, 14.1-72.6113.1-63.18, 14.1-72.61

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 4.07.1HighCNA
CVSS 3.17.5HighNVD

Official description

Arbitrary File Read (Unauthenticated) in NetScaler ADC and NetScaler Gateway if the access to NSIP, Cluster Management IP or SNIP with management access is enabled

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Externally Controlled Reference to a Resource in Another Sphere

The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.

More Externally Controlled Reference to a Resource in Another Sphere vulnerabilities (CWE-610)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in ADC

All ADC vulnerabilities

Recent Externally Controlled Reference to a Resource in Another Sphere vulnerabilities

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