# CVE-2026-88772

RCE/DoS in Citrix NetScaler ADC/Gateway allowing full system compromise.

- Page: https://www.vulneraibility.com/cve/CVE-2026-88772
- CVSS: 9.5
- Known exploited: yes, in CISA KEV since 2026-09-27; CISA due date 2026-09-30
- EPSS: 76.57% (percentile 99.5)
- Public exploit code: 1 Metasploit module · 4 GitHub proofs of concept (first 2026-09-27)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2026-09-27)
- Weakness: CWE-119
- 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

Remote code execution or denial of service via memory‑buffer overflow on NetScaler, enabling full system compromise, persistent backdoors, or service outages.

## Action

Immediate action required

## Recommendation

Install Citrix fixes (14.1-73.37 / 13.1-64.23 or later) or apply vendor mitigations immediately.

## References

- [other] https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697096&articleTitle=Citrix_NetScaler_ADC_and_Citrix_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_88771_CVE_2026_88772_CVE_2026_88773_CVE_2026_88774_CVE_2026_88775_CVE_2026_88776_CVE_2026_88777_and_CVE_2026_88778
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88772

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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.