MSRXCVE-2026-88772
CVE-2026-88772
Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CVSS 4.0 · CNA
chance of exploitation in the next 30 days (EPSS; in the top 1% of all CVEs)
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
Scores
Affected products
- citrix netscaler application delivery controller: ≥ 13.1, < 13.1-64.23; ≥ 13.1, < 13.1.37.279; ≥ 14.1, < 14.1-73.37; ≥ 14.1-66.68, ≤ 14.1-73.37
- citrix netscaler gateway: ≥ 13.1, < 13.1-64.23; ≥ 14.1, < 14.1-73.37
Weakness: CWE-119
2 references (advisories, patches, write-ups)
- 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 · Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88772 · US Government Resource
Sources: NVD, CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.