{"api_version":"1","generated_at":"2026-07-23T14:30:56+00:00","cve":"CVE-2021-3053","urls":{"html":"https://cve.report/CVE-2021-3053","api":"https://cve.report/api/cve/CVE-2021-3053.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3053","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3053"},"summary":{"title":"CVE-2021-3053","description":"An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.","state":"PUBLIC","assigner":"psirt@paloaltonetworks.com","published_at":"2021-09-08 17:15:00","updated_at":"2021-09-15 19:29:00"},"problem_types":["CWE-755"],"metrics":[],"references":[{"url":"https://security.paloaltonetworks.com/CVE-2021-3053","name":"N/A","refsource":"CONFIRM","tags":[],"title":"CVE-2021-3053 PAN-OS: Exceptional Condition Denial-of-Service (DoS)","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3053","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3053","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"This issue was found by Nicholas Newsom of Palo Alto Networks during internal security review.","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"3053","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"paloaltonetworks","cpe5":"pan-os","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-3053","qid":"730192","title":"Palo Alto Networks PAN-OS Exceptional Condition Denial-of-Service Vulnerability (PAN-158723)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"psirt@paloaltonetworks.com","DATE_PUBLIC":"2021-09-08T16:00:00.000Z","ID":"CVE-2021-3053","STATE":"PUBLIC","TITLE":"PAN-OS: Exceptional Condition Denial-of-Service (DoS)"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"PAN-OS","version":{"version_data":[{"version_affected":"<","version_name":"8.1","version_value":"8.1.20"},{"version_affected":"<","version_name":"9.0","version_value":"9.0.14"},{"version_affected":"<","version_name":"9.1","version_value":"9.1.9"},{"version_affected":"<","version_name":"10.0","version_value":"10.0.5"},{"version_affected":"!>=","version_name":"8.1","version_value":"8.1.20"},{"version_affected":"!>=","version_name":"9.0","version_value":"9.0.14"},{"version_affected":"!>=","version_name":"9.1","version_value":"9.1.9"},{"version_affected":"!>=","version_name":"10.0","version_value":"10.0.5"},{"version_affected":"!","version_name":"10.1","version_value":"10.1.*"}]}}]},"vendor_name":"Palo Alto Networks"}]}},"credit":[{"lang":"eng","value":"This issue was found by Nicholas Newsom of Palo Alto Networks during internal security review."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. 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improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"3053","Ordinal":"2","NoteData":"2021-09-08","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"3053","Ordinal":"3","NoteData":"2021-09-08","Type":"Other","Title":"Modified"}]}}}