{"id":"CVE-2024-3393","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-3393","generatedAt":"2026-10-31T08:08:59.830Z","title":"Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability","description":"A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.","published":"2024-12-27T10:15:17.000Z","lastModified":"2026-06-17T07:44:11.000Z","status":"Analyzed","sourceIdentifier":"psirt@paloaltonetworks.com","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-754"],"affected":["paloaltonetworks/pan-os","paloaltonetworks/prisma access"],"epss":{"score":0.2912,"percentile":0.98164,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2024-12-30","dueDate":"2025-01-20","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nhttps://security.paloaltonetworks.com/CVE-2024-3393 ; https://nvd.nist.gov/vuln/detail/CVE-2024-3393"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 January 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://security.paloaltonetworks.com/CVE-2024-3393","tags":["Vendor Advisory"],"source":"psirt@paloaltonetworks.com"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-3393","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-3393","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}