Description
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.
Published: 2026-09-27
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 27 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title TCP Initial Sequence Number (ISN) prediction
Weaknesses CWE-342
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: NetScaler

Published:

Updated: 2026-09-27T16:43:16.503Z

Reserved: 2026-09-10T07:14:57.370Z

Link: CVE-2026-88778

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-27T17:16:57.110

Modified: 2026-09-27T17:16:57.110

Link: CVE-2026-88778

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-27T18:00:12Z

Weaknesses