Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-88779

CVE-2026-88779HIGH

NetScaler ADC — Memory overflow vulnerability leading to Denial of Service

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   N   N   H    8.7   .0059   46.6   YES

AFFECTED
  Product  Versions     Fixed
  ADC      unspecified  —
  Gateway  unspecified  —

TIMELINE
  Sep 10  Reserved by NetScaler
  Oct 4   ADDED TO KEV — CVE-2026-88779 (NetScaler ADC). Remediation due October 7, 2026.
  Oct 4   Published (CNA: NetScaler)

CWE-119 · CNA: NetScaler · CVSS v4.0 · 3 references · NVD status: Analyzed · KEV due October 7, 2026

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 10, 2026	Reserved	Reserved by NetScaler
October 4, 2026	KEV ADDED	ADDED TO KEV — CVE-2026-88779 (NetScaler ADC). Remediation due October 7, 2026.
October 4, 2026	Published	Published (CNA: NetScaler)

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
NetScaler	ADC	—	—	—
NetScaler	Gateway	—	—	—

Weaknesses

CWE-119

References (3)

https://community.citrix.com/techzone-blogs/110_security-updates/understanding-and-addressing-cve-2026-88779-in-citrix-netscaler-adc-and-citrix-netscaler-gateway/ [Mitigation, Vendor Advisory]
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174 [Vendor Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88779 [US Government Resource]

Authoritative record: CVE-2026-88779 at cve.org

Vendors: netscaler

Weaknesses: CWE-119

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-88779 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.