# CVE-2026-88779: Memory overflow vulnerability  leading to Denial of Service

> CVE-2026-88779: Memory overflow vulnerability leading to Denial of Service. CVSS 7.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2026-88779
Last updated: 2026-10-05T13:35:24Z

- Published: 2026-10-04 02:35 UTC · Updated: 2026-10-05 13:35 UTC · Assigner: NetScaler
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 11.4%, 96th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2026-10-04, federal due date 2026-10-07, ransomware use: Unknown

## 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.

## CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

## Affected vendors and products

- NetScaler: ADC
- NetScaler: Gateway

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-88779)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-88779)
- [https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174](https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-88779 · Markdown: https://rewindex.com/cve/CVE-2026-88779.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-88779 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:14:51.403Z