by Kastro
Paper/Archive/CVE-2026-88772

CVE-2026-88772

Citrix NetScaler ADC — Memory overflow vulnerability leading to Remote Code Execution or Denial of Service

KEV · due 30 SepEPSS 78%public exploitSSVC actCVSS 9.5
critical.is priorityof 100
98
CVSS 9.5 (CNA)9.5 / 10 × 3028.5In CISA KEV+3030.0EPSS percentile 99.6.996 × 2019.9Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to Remote Code Execution or Denial of Service

Affected

ProductAffectedFixed inSource
ADC< 14.1-73.3714.1-73.37CNA
ADC< 13.1-64.2313.1-64.23CNA
ADC< 14.1-73.37 FIPS14.1-73.37 FIPSCNA
ADC< 13.1.37.279 FIPS and NDcPP13.1.37.279 FIPS and NDcPPCNA
Gateway< 14.1-73.3714.1-73.37CNA
Gateway< 13.1-64.2313.1-64.23CNA

Scores by source

NetScaler (CNA)9.5CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: active · Automatable: no · Technical impact: total

References

refsupport.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_88778refcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88772kevcisa.gov/known-exploited-vulnerabilities-catalog