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major vulnerability· requires attention

Affects Citrix NetScaler ADC/Gateway, widely deployed enterprise network appliances; exploitation can compromise remote access/load‑balancing infrastructure.

Infrastructure

CVE-2026-88779

8.7
High
EPSS n/aPatch availableOct 4, 2026

Citrix NetScaler ADC/Gateway vuln enabling appliance compromise

common questions

Is CVE-2026-88779 being exploited?

Not confirmed. CVE-2026-88779 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.

How severe is CVE-2026-88779?

CVE-2026-88779 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-88779?

Yes. A fix has been recorded for CVE-2026-88779. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-88779 affect?

CVE-2026-88779 affects Citrix NetScaler ADC (before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, before 13.1-37.282), Citrix NetScaler Gateway (before 14.1-73.41, before 13.1-64.28). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-88779?

Apply vendor fixes to listed builds immediately; isolate and monitor appliances until patched.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Citrix NetScaler ADC (before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, before 13.1-37.282)Citrix NetScaler Gateway (before 14.1-73.41, before 13.1-64.28)
impact

Remote attackers can exploit to compromise NetScaler appliances, enabling remote code execution, management access, or service disruption.

action required

Immediate action required

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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