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18 vulnerabilities
CVE-2026-88778 (GCVE-0-2026-88778)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:43 – Updated: 2026-09-29 16:35
VLAI
EPSS
VEX
Title
TCP Initial Sequence Number (ISN) prediction
Summary
Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 16:34 UTC
CWE
- CWE-342 - Predictable exact value from previous values
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) Affected: 0 , < 14.1-73.37 FIPS (Patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (Patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88777 (GCVE-0-2026-88777)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:37 – Updated: 2026-09-29 21:01
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:07 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88776 (GCVE-0-2026-88776)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:36 – Updated: 2026-09-29 16:06
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:11 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88775 (GCVE-0-2026-88775)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:21 – Updated: 2026-09-29 15:15
VLAI
EPSS
VEX
Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Summary
Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:14 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88773 (GCVE-0-2026-88773)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:20 – Updated: 2026-09-29 15:21
VLAI
EPSS
VEX
Title
HTTP Request Smuggling
Summary
Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1-37.279 and NDcPP; Gateway: before 14.1-73.37 FIPS and before 13.1-64.23.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:17 UTC
CWE
- CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) Affected: 0 , < 14.1-73.37 FIPS (Patch) Affected: 0 , < 13.1-37.279 and NDcPP (Patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37 FIPS
(Patch)
Affected: 0 , < 13.1-64.23 (Patch) |
Date Public
2026-09-27 15:30
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CVE-2026-88774 (GCVE-0-2026-88774)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:14 – Updated: 2026-09-29 15:24
VLAI
EPSS
VEX
Title
Feature policy bypass due to improper HTTP URL based expression usage
Summary
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to a feature policy bypass due to improper HTTP URL based expression usage.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:22 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
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|
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Affected:
0 , < 14.1-73.37
(patch)
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CVE-2026-88772 (GCVE-0-2026-88772)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:09 – Updated: 2026-09-28 03:55Title
Memory overflow vulnerability leading to Remote Code Execution or Denial of Service
Summary
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to Remote Code Execution or Denial of Service
Severity
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-27 00:00 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
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CVE-2026-88771 (GCVE-0-2026-88771)
Vulnerability from cvelistv5 – Published: 2026-09-27 16:02 – Updated: 2026-09-29 03:55Title
A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands
Summary
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated attacker to execute arbitrary commands.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-27 00:00 UTC
CWE
- CWE-20 - Improper input validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Citrix NetScaler | ADC |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) Affected: 0 , < 14.1-73.37 FIPS (patch) Affected: 0 , < 13.1.37.279 FIPS and NDcPP (patch) |
|
| Citrix NetScaler | Gateway |
Affected:
0 , < 14.1-73.37
(patch)
Affected: 0 , < 13.1-64.23 (patch) |
Date Public
2026-09-27 15:51
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CVE-2026-19490 (GCVE-0-2026-19490)
Vulnerability from cvelistv5 – Published: 2026-08-19 12:54 – Updated: 2026-09-10 03:55Title
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490
Summary
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 00:00 UTC
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
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CVE-2026-19489 (GCVE-0-2026-19489)
Vulnerability from cvelistv5 – Published: 2026-08-19 12:45 – Updated: 2026-08-20 13:36
VLAI
EPSS
VEX
Summary
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 13:36 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
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CVE-2026-13474 (GCVE-0-2026-13474)
Vulnerability from cvelistv5 – Published: 2026-06-30 13:03 – Updated: 2026-06-30 13:27
VLAI
EPSS
VEX
Title
Denial of service via malformed HTTP/2 requests
Summary
Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 13:27 UTC
CWE
- CWE-401 - Missing release of memory after effective lifetime
Assigner
References
1 reference
Impacted products
Date Public
2026-06-30 12:00
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CVE-2026-10817 (GCVE-0-2026-10817)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:58 – Updated: 2026-06-30 13:28
VLAI
EPSS
VEX
Title
Insufficient input validation leading to memory overread
Summary
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
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 13:28 UTC
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
1 reference
Impacted products
Date Public
2026-06-30 12:52
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CVE-2026-10816 (GCVE-0-2026-10816)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:52 – Updated: 2026-06-30 13:28
VLAI
EPSS
VEX
Title
Arbitrary File Read (Unauthenticated)
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 13:28 UTC
CWE
- CWE-73 - External control of file name or path
Assigner
References
1 reference
Impacted products
Date Public
2026-06-30 12:00
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CVE-2026-8655 (GCVE-0-2026-8655)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:46 – Updated: 2026-06-30 13:33
VLAI
EPSS
VEX
Title
Multiple Memory overflow vulnerabilities leading to unpredictable or erroneous behavior and Denial of Service
Summary
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 13:33 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
1 reference
Impacted products
Date Public
2026-06-30 12:00
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CVE-2026-8452 (GCVE-0-2026-8452)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:41 – Updated: 2026-08-27 03:56Title
Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service
Summary
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 00:00 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
Date Public
2026-06-30 12:00
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CVE-2026-8451 (GCVE-0-2026-8451)
Vulnerability from cvelistv5 – Published: 2026-06-30 12:33 – Updated: 2026-06-30 13:43Title
Insufficient input validation leading to memory overread
Summary
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 13:43 UTC
CWE
- awe-125
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
Date Public
2026-06-30 12:00
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CVE-2026-3055 (GCVE-0-2026-3055)
Vulnerability from cvelistv5 – Published: 2026-03-23 20:21 – Updated: 2026-03-31 03:55Title
Insufficient input validation leading to memory overread
Summary
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 00:00 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://support.citrix.com/support-home/kbsearch/… | |
| https://labs.watchtowr.com/please-we-beg-just-one… | third-party-advisory |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
Date Public
2026-03-23 19:20
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CVE-2026-4368 (GCVE-0-2026-4368)
Vulnerability from cvelistv5 – Published: 2026-03-23 20:09 – Updated: 2026-05-10 13:00Title
Race Condition leading to User Session Mixup
Summary
Race Condition in NetScaler ADC and NetScaler Gateway when appliance is configured as Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server leading to User Session Mixup
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 03:56 UTC
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
Impacted products
Date Public
2026-03-23 20:02
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