Actively exploited in the wild
Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability
Palo Alto Networks - PAN-OS · Listed in the CISA KEV since 2024-12-30. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CVE-2024-3393
HighCVSS 7.5KEVSummary
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.
Risk Assessment
An unauthenticated remote attacker can force the firewall to reboot and eventually enter maintenance mode, causing network service outages and a loss of traffic protection.
Recommendation
Immediately apply the PAN-OS update provided by Palo Alto Networks, and until it is deployed consider restricting access to affected interfaces and monitoring for unexpected firewall reboots.
Other vulnerabilities in Palo Alto Networks PAN-OS
See all- CVE-2017-15942High
Palo Alto Networks PAN-OS versions before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.13, and 8.0.x before 8.0.6 allow remote attackers to cause a denial of service via vectors related to the management interface.
- CVE-2017-7218High
The Management Web Interface in Palo Alto Networks PAN-OS before 7.1.9 allows remote authenticated users to gain privileges via unspecified request parameters.
- CVE-2016-9151High
Palo Alto Networks PAN-OS versions before 5.0.20, 5.1.x before 5.1.13, 6.0.x before 6.0.15, 6.1.x before 6.1.15, 7.0.x before 7.0.11, and 7.1.x before 7.1.6 allow local users to gain privileges via crafted values of unspecified environment variables.
- CVE-2016-1712High
Palo Alto Networks PAN-OS versions before 5.0.19, 5.1.x before 5.1.12, 6.0.x before 6.0.14, 6.1.x before 6.1.12, and 7.0.x before 7.0.8 may allow local users to gain privileges by leveraging improper sanitization of the root_reboot local invocation.
- CVE-2016-3654High
The device management command line interface (CLI) in Palo Alto Networks PAN-OS before version 5.0.18 and in versions 5.1.x before 5.1.11, 6.0.x before 6.0.13, 6.1.x before 6.1.10, and 7.0.x before 7.0.5H2 allows remote authenticated administrators to execute arbitrary OS commands via an SSH command parameter.
- CVE-2026-0284Critical
An XML injection vulnerability in the Large Scale VPN (LSVPN) functionality of Palo Alto Networks PAN-OS software allows an unauthenticated attacker with network access to inject malicious XML content, potentially leading to information disclosure or corruption of internal LSVPN satellite data. Panorama, Cloud NGFW, and Prisma Access are not affected by this vulnerability.
- CVE-2024-3400CriticalActively exploited
In Palo Alto Networks PAN-OS GlobalProtect feature, a command injection vulnerability due to arbitrary file creation exists. An unauthenticated attacker can execute arbitrary code with root privileges on the firewall.
- CVE-2022-0028HighActively exploited
A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The attack would appear to originate from a Palo Alto Networks PA-Series, VM-Series, or CN-Series firewall against an attacker-specified target. This requires a URL filtering profile with blocked categories assigned to a source zone with an external facing interface.
- CVE-2017-15940Critical
The web interface packet capture management component in Palo Alto Networks PAN-OS before 6.1.19, 7.0.x before 7.0.19, 7.1.x before 7.1.14, and 8.0.x before 8.0.6 allows remote authenticated users to execute arbitrary code via unspecified vectors.
- CVE-2016-9150Critical
Buffer overflow in the management web interface in Palo Alto Networks PAN-OS before version 5.0.20, 5.1.x before 5.1.13, 6.0.x before 6.0.15, 6.1.x before 6.1.15, 7.0.x before 7.0.11, and 7.1.x before 7.1.6 allows remote attackers to execute arbitrary code.
Original NVD description (English source)
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.