CVE-2026-56128

highcovered by 2 sourcesfirst seen 2026-08-14

A remote, authenticated attacker can exploit multiple vulnerabilities in Netgate pfSense to execute arbitrary code, perform cross-site scripting attacks, manipulate data, or disclose confidential information.

CSIRTS triage

What: Multiple vulnerabilities permit remote authenticated attackers to execute code, perform XSS, manipulate data, or disclose information.
Who is affected: pfSense deployments with authenticated user access.
Urgency: High severity with remote code execution capability; treat as critical.
Action: Apply patches for CVE-2026-56126, CVE-2026-56127, CVE-2026-56128, and CVE-2026-67189 immediately.

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Advisory coverage (2)

high[NEW] [high] Netgate pfSense: Multiple vulnerabilitiescert-bund · 2026-08-14
unknownMultiple vulnerabilities in Netgate products (August 14, 2026)cert-fr-avis · 2026-08-14

External references

NVD record for CVE-2026-56128

CVE.org record

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