CVE-2024-3393
Actively exploited. CVE-2024-3393 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-12-30) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Palo Alto Networks PAN-OS contains a vulnerability in parsing and logging malicious DNS packets in the DNS Security feature that, when exploited, allows an unauthenticated attacker to remotely reboot the firewall. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.
CSIRTS triage
- What
- Palo Alto Networks PAN-OS contains a vulnerability in parsing and logging malicious DNS packets that can allow an unauthenticated attacker to remotely reboot the firewall.
- Who is affected
- Deployments of Palo Alto Networks PAN-OS firewalls.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Apply the security updates provided by Palo Alto Networks.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2024-3393: Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerabilitycisa-kev · 2024-12-30
External references
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