{"api_version":"1","generated_at":"2026-07-23T10:06:26+00:00","cve":"CVE-2020-1999","urls":{"html":"https://cve.report/CVE-2020-1999","api":"https://cve.report/api/cve/CVE-2020-1999.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-1999","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-1999"},"summary":{"title":"CVE-2020-1999","description":"A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. 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