Buffer overflow in Citrix Netscaler Application Delivery Controller
CVE-2026-88776
Memory overflow vulnerability 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 unpredictable or erroneous behavior or Denial of Service
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS 0.008, 58.1th percentile (scored ); unchanged over 30 days. About EPSS.
Affected products
Weakness classification (CWE)
Public exploits and proof-of-concept code
6 public repositories with exploit or proof-of-concept code for this CVE:
- Scyrix-LLC/CVE-2026-88776 (2 stars, last pushed 2026-10-09): Write-up for CVE-2026-88776
- CompleTech-Security/netscaler-cve-2026-88776-check (last pushed 2026-10-26): Offline NetScaler ADC / Gateway evidence checker for CVE-2026-88776. Reported firmware and configuration evidence. Standalone Python; JSON/CSV/HTML reports; no exploit payloads.
- CompleteTech-Security/netscaler-cve-2026-88776-check (last pushed 2026-10-26): Offline NetScaler ADC / Gateway evidence checker for CVE-2026-88776. Reported firmware and configuration evidence. Standalone Python; JSON/CSV/HTML reports; no exploit payloads.
- CompleTetech-Security/netscaler-cve-2026-88776-check (last pushed 2026-10-26): Offline NetScaler ADC / Gateway evidence checker for CVE-2026-88776. Reported firmware and configuration evidence. Standalone Python; JSON/CSV/HTML reports; no exploit payloads.
- completetech-security/netscaler-cve-2026-88776-check (last pushed 2026-10-24): Standalone defensive checker project for CVE-2026-88776: Citrix NetScaler ADC / Gateway: Oracle load-balancer memory corruption. One exploit per repository; implementation pending.
- CompleteTech-LLC/netscaler-cve-2026-88776-check (last pushed 2026-10-24): Standalone defensive checker project for CVE-2026-88776: Citrix NetScaler ADC / Gateway: Oracle load-balancer memory corruption. One exploit per repository; implementation pending.
References
- support.citrix.com/support-home/kbsearch/article (Vendor Advisory)
This CVE has public exploit evidence. See the latest CVEs with public exploits.