CVE-2026-10817: CWE-125 Out-of-bounds read in NetScaler ADC
Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
AI Analysis
Technical Summary
This vulnerability arises from insufficient input validation in NetScaler ADC and Gateway products when the TCP TimeStamp feature is enabled in the TCP Profile linked to virtual servers of type Load Balancer (LB), Content Switching (CS), VPN, or associated services. This flaw leads to an out-of-bounds memory read condition (CWE-125), which may expose sensitive memory contents or cause application instability. The CVSS 4.0 base score is 6.9, indicating a medium severity level. The vulnerability affects exactly versions 13.1 and 14.1 of NetScaler ADC. There is no vendor advisory indicating an available patch or workaround at this time.
Potential Impact
The vulnerability allows an attacker to cause an out-of-bounds read in memory, potentially leading to information disclosure or application instability. However, there is no indication of privilege escalation, remote code execution, or denial of service. The attack vector is network-based with no privileges or user interaction required, but the impact is limited to partial memory disclosure or instability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling the TCP TimeStamp option in TCP Profiles associated with virtual servers or services as a potential temporary mitigation if feasible. Monitor vendor communications for updates on patches or official workarounds.
CVE-2026-10817: CWE-125 Out-of-bounds read in NetScaler ADC
Description
Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
CVSS v4.0
Score 6.9medium
Affected software
pkg:github/citrix/netscaler-adcRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from insufficient input validation in NetScaler ADC and Gateway products when the TCP TimeStamp feature is enabled in the TCP Profile linked to virtual servers of type Load Balancer (LB), Content Switching (CS), VPN, or associated services. This flaw leads to an out-of-bounds memory read condition (CWE-125), which may expose sensitive memory contents or cause application instability. The CVSS 4.0 base score is 6.9, indicating a medium severity level. The vulnerability affects exactly versions 13.1 and 14.1 of NetScaler ADC. There is no vendor advisory indicating an available patch or workaround at this time.
Potential Impact
The vulnerability allows an attacker to cause an out-of-bounds read in memory, potentially leading to information disclosure or application instability. However, there is no indication of privilege escalation, remote code execution, or denial of service. The attack vector is network-based with no privileges or user interaction required, but the impact is limited to partial memory disclosure or instability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling the TCP TimeStamp option in TCP Profiles associated with virtual servers or services as a potential temporary mitigation if feasible. Monitor vendor communications for updates on patches or official workarounds.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NetScaler
- Date Reserved
- 2026-06-04T05:49:25.173Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a43c34927e9c79719d5bd49
Added to database: 06/30/2026, 13:23:21 UTC
Last enriched: 06/30/2026, 13:38:02 UTC
Last updated: 07/01/2026, 03:26:43 UTC
Views: 6
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