{"id":"CVE-2026-107406","aliases":["EUVD-2026-95315","GHSA-x62m-6223-4vq2"],"status":"published","title":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service","description":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n \n\n  *  For the following versions: Applicable only when configured as a SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n \n\n\n\nFor the following versions: Applicable only when configured as a SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37 \n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS \n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279","severity":{"version":"4.0","score":9.5,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01874,"percentile":0.79682,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-119"],"published":"2026-10-08T21:18:08Z","modified":"2026-10-10T04:18:09Z","exploits":[{"source":"pocgithub","id":"ApexBreach/CVE-2026-107406-Poc","title":"ApexBreach/CVE-2026-107406-Poc","date":"2026-10-09","url":"https://github.com/ApexBreach/CVE-2026-107406-Poc"},{"source":"pocgithub","id":"techupdate24/citrix-netscaler-rce-cve-2026-107406","title":"techupdate24/citrix-netscaler-rce-cve-2026-107406","date":"2026-10-09","url":"https://github.com/techupdate24/citrix-netscaler-rce-cve-2026-107406"},{"source":"pocgithub","id":"maxprog-svg/CVE-2026-107406","title":"maxprog-svg/CVE-2026-107406","date":"2026-11-01","url":"https://github.com/maxprog-svg/CVE-2026-107406"}],"products":[{"vendor":"netscaler","product":"adc"},{"vendor":"netscaler","product":"gateway"}],"references":[{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697191"},{"url":"https://community.citrix.com/techzone-blogs/110_security-updates/protecting-customers-immediate-guidance-for-cve-2026-107406-in-netscaler-adc-and-netscaler-gateway-r1631/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107406"},{"url":"https://community.citrix.com/techzone-blogs/110_security-updates/protecting-customers-immediate-guidance-for-cve-2026-107406-in-netscaler-adc-and-netscaler-gateway-r1631"},{"url":"https://github.com/advisories/GHSA-x62m-6223-4vq2"}],"sources":{"cve":[{"id":"CVE-2026-107406","title":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service","description":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n \n\n  *  For the following versions: Applicable only when configured as a SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n \n\n\n\nFor the following versions: Applicable only when configured as a SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37 \n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS \n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279","status":"published","published":"2026-10-08T21:18:08.336Z","modified":"2026-10-10T03:55:21.152Z","cvss":[{"version":"4.0","score":9.5,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L","level":"critical","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T13:45:25.313702Z"}],"euvd":[{"id":"EUVD-2026-95315","description":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n \n\n  *  For the following versions: Applicable only when configured as a SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n \n\n\n\nFor the following versions: Applicable only when configured as a SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37 \n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS \n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279","status":"published","published":"2026-10-08T21:18:08Z","modified":"2026-10-10T03:55:21Z","cvss":[{"version":"4.0","score":9.5,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L","level":"critical"}],"updated_at":"2026-11-02T17:27:23.685286Z"}],"ghsa":[{"id":"GHSA-x62m-6223-4vq2","title":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability...","description":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n \n\n  *  For the following versions: Applicable only when configured as a SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n \n\n\n\nFor the following versions: Applicable only when configured as a SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37 \n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS \n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279","status":"published","published":"2026-10-09T00:31:44Z","modified":"2026-10-09T15:31:27Z","cvss":[{"version":"4.0","score":9.5,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/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","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:13:00.589729Z"}],"nvd":[{"id":"CVE-2026-107406","description":"Memory overflow vulnerability leading to Remote Code Execution or Denial of Service Vulnerability in NetScaler ADC.\n\n\nNetScaler ADC or NetScaler Gateway must be configured as a SAML SP or SAML IdP, subject to the following version-specific requirements:\n\n\n\n \n\n  *  For the following versions: Applicable only when configured as a SAML IdP:\n  *  NetScaler ADC and NetScaler Gateway between 14.1-73.37 and 14.1-73.41, inclusive\n  *  NetScaler ADC 14.1-FIPS between 14.1-73.37 FIPS and 14.1-73.41 FIPS, inclusive\n  *  NetScaler ADC and NetScaler Gateway between 13.1-64.23 and 13.1-64.28, inclusive\n  *  NetScaler ADC 13.1-FIPS between 13.1-NDcPP 13.1-37.279 and 13.1- 37.282, inclusive\n\n\n\n\n \n\n\n\nFor the following versions: Applicable only when configured as a SAML SP or SAML IdP:\n\n  *  NetScaler ADC and NetScaler Gateway before 14.1-73.37 \n  *  NetScaler ADC 14.1-FIPS before 14.1-73.37 FIPS \n  *  NetScaler ADC and NetScaler Gateway before 13.1-64.23\n  *  NetScaler ADC 13.1-FIPS before13.1-NDcPP 13.1-37.279","status":"published","published":"2026-10-08T22:17:26.847Z","modified":"2026-10-10T04:18:09.503Z","cvss":[{"version":"4.0","score":9.5,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/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","level":"critical","assessor":"secondary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:12:55.142936Z"}]}}