# CVE-2026-88771

Unauthenticated remote command execution in Citrix NetScaler ADC/Gateway

- Page: https://www.vulneraibility.com/cve/CVE-2026-88771
- CVSS: 9.5
- Known exploited: yes, in CISA KEV since 2026-09-27; CISA due date 2026-09-30
- EPSS: 81.89% (percentile 99.7)
- Public exploit code: 1 Metasploit module · 12 GitHub proofs of concept (first 2026-09-27)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2026-09-27)
- Weakness: CWE-20
- Published: 2026-09-27

## Affected versions

- Citrix NetScaler ADC: affected < 14.1-73.37; < 13.1-64.23; < 14.1-73.37 FIPS; < 13.1.37.279 FIPS and NDcPP
- Citrix NetScaler Gateway: affected < 14.1-73.37; < 13.1-64.23

A version outside these ranges is not a statement that it is unaffected.

## Impact

Unauthenticated attackers can execute arbitrary OS commands, fully compromise appliances, intercept traffic, and pivot into networks.

## Action

Immediate action required

## Recommendation

Apply Citrix updates (>=14.1-73.37 or >=13.1-64.23) or apply vendor mitigations; isolate internet-facing appliances.

## References

- [other] https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88771

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.