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Back to active CVEs
High · CVSS 8.7CVE-2026-88779

Memory overflow vulnerability leading to Denial of ServiceCVE-2026-88779

Answer in brief

CVE-2026-88779 records a High severity (CVSS 8.7) vulnerability in Memory overflow vulnerability leading to Denial of Service. The current sources do not mark it as known exploited. The current feed maps NetScaler/ADC (generic), NetScaler/Gateway (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 4, 2026Updated Oct 4, 2026Source checked Oct 4, 2026First seen by HOL Oct 4, 2026Material review Oct 4, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.7
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps NetScaler/ADC (generic), NetScaler/Gateway (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
NetScaler/ADCgeneric>=0 <14.1-73.41 || >=0 <13.1-64.28 || >=0 <14.1-73.41 FIPS || >=0 <13.1-37.28214.1-73.41, 13.1-64.28, 14.1-73.41 FIPS, 13.1-37.282
NetScaler/Gatewaygeneric>=0 <14.1-73.41 || >=0 <13.1-64.2814.1-73.41, 13.1-64.28

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for NetScaler/ADC, NetScaler/Gateway.
  2. 2Review the reported fix. Update NetScaler/ADC to 14.1-73.41; NetScaler/Gateway to 14.1-73.41 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 4, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 4, 2026

Sources and claim methodology

  • Source referencesupport.citrix.com
Upstream source description

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 4, 2026
References
1 linked source
Open source record