CVE-2026-88779

8.7 HIGH 11% exploit odds exploited in the wild Fix listed Memory safety Network gear

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
In the wild: CISA lists this as exploited in real attacks. Treat as urgent.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-09-10 07:14 UTC ReservedThe CVE id was reserved by its CNA
2026-10-04 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
2026-10-04 04:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-05 13:35 UTC Last updatedMost recent change to the record
2026-10-07 Remediation deadlineCISA's due date for federal agencies to fix it

Why it ranks here

Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
Exploit odds: 11.4% in the next 30 days (EPSS).
Severity: 8.7 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-10-04 04:16 UTC
Last modified: 2026-10-05 13:35 UTC
Added to CISA KEV: 2026-10-04
Exploit probability: 11.4% · EPSS, next 30 days
Weakness: CWE-119 · Buffer errors
Record status: Analyzed

Affected

Citrix Netscaler Application Delivery Controller < 13.1-37.282
Citrix Netscaler Application Delivery Controller < 13.1-64.28
Citrix Netscaler Application Delivery Controller < 14.1-73.41
Citrix Netscaler Application Delivery Controller ≤ 14.1-73.41
Citrix Netscaler Gateway < 13.1-64.28
Citrix Netscaler Gateway < 14.1-73.41

Attack profile CVSS 4.0 · 8.7

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-88779.md and follow it. Check whether this project is affected by CVE-2026-88779. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record