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CISA adds Citrix NetScaler CVE-2026-88771 and CVE-2026-88772 to KEV catalog over active exploitation

1 fonte(s) · 1 atualização(ões) · publicado 27/09/2026 09:00 · coletado há 1 dia

CISA added two Citrix NetScaler vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-88771, an improper input validation flaw, and CVE-2026-88772, a memory buffer bounds restriction flaw. CISA describes these vulnerability types as frequent attack vectors for malicious cyber actors and a significant risk to the federal enterprise. The alert gives no technical exploitation details, threat actor attribution, victim information or IOCs. It restates the requirements of BOD 26-04 for Federal Civilian Executive Branch (FCEB) agencies, and CISA encourages all organizations to adopt risk-based vulnerability management and prioritize KEV remediation.

Technical Details

  • CVE-2026-88771: Citrix NetScaler Improper Input Validation Vulnerability.
  • CVE-2026-88772: Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability.
  • The article does not list affected versions, exploitation methods or whether the flaws are chained.

Remediation

  • Under BOD 26-04, FCEB agencies must prioritize rapid remediation of KEV-listed CVEs on publicly exposed assets that grant total control of the asset after exploitation.
  • BOD 26-04 also sets basic expectations for when agencies must check whether threat actors compromised a system before the patch was applied.
  • CISA encourages all organizations to prioritize remediation of KEV Catalog vulnerabilities.
  • The article gives no specific patch or mitigation guidance; consult the vendor advisories from Citrix.

Linha do tempo

  1. cisa.gov ↗ · pub. 27/09/2026 09:00 · coletado 19/10 18:37 primeiro registro

    CISA adds Citrix NetScaler CVE-2026-88771 and CVE-2026-88772 to KEV catalog over active exploitation

    ler a análise desta fonte

    CISA added two Citrix NetScaler vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-88771, an improper input validation flaw, and CVE-2026-88772, a memory buffer bounds restriction flaw. CISA describes these vulnerability types as frequent attack vectors for malicious cyber actors and a significant risk to the federal enterprise. The alert gives no technical exploitation details, threat actor attribution, victim information or IOCs. It restates the requirements of BOD 26-04 for Federal Civilian Executive Branch (FCEB) agencies, and CISA encourages all organizations to adopt risk-based vulnerability management and prioritize KEV remediation.

    Technical Details

    • CVE-2026-88771: Citrix NetScaler Improper Input Validation Vulnerability.
    • CVE-2026-88772: Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability.
    • The article does not list affected versions, exploitation methods or whether the flaws are chained.

    Remediation

    • Under BOD 26-04, FCEB agencies must prioritize rapid remediation of KEV-listed CVEs on publicly exposed assets that grant total control of the asset after exploitation.
    • BOD 26-04 also sets basic expectations for when agencies must check whether threat actors compromised a system before the patch was applied.
    • CISA encourages all organizations to prioritize remediation of KEV Catalog vulnerabilities.
    • The article gives no specific patch or mitigation guidance; consult the vendor advisories from Citrix.