Paloaltonetworks: Security Vulnerabilities
CVE-2026-0300
A buffer overflow vulnerability in the User-ID™ Authentication Portal (aka Captive Portal) service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets.
The risk of this issue is greatly reduced if you secure access to the User-ID™ Authentication Portal per the best practice guidelines https://knowledgebase.paloaltonetworks.com/KCSArticleDetail by restricting access to only trusted internal IP addresses.
Prisma Access, Cloud NGFW and Panorama appliances are not impacted by this vulnerability.
Known exploited
CVSS Score
9.3
EPSS Score
0.317
Published
2026-05-06
A certificate validation vulnerability in Palo Alto Networks Autonomous Digital Experience Manager on Windows allows an unauthenticated attacker with adjacent network access to execute arbitrary code with NT AUTHORITY\SYSTEM privileges.
CVSS Score
2.0
EPSS Score
0.002
Published
2026-04-13
An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR and Cortex XSIAM platforms during integration of Microsoft Teams that enables an unauthenticated user to access and modify protected resources.
CVSS Score
7.2
EPSS Score
0.002
Published
2026-04-13
A problem with a protection mechanism in the Palo Alto Networks Cortex XDR agent on Windows allows a local Windows administrator to disable the agent. This issue may be leveraged by malware to perform malicious activity without detection.
CVSS Score
4.0
EPSS Score
0.001
Published
2026-04-13
A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.
CVSS Score
6.6
EPSS Score
0.007
Published
2026-01-15
An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to view session tokens of users authenticated to the firewall web UI. This may allow impersonation of users whose session tokens are leaked.
The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators.
Cloud NGFW and Prisma® Access are not affected by this vulnerability.
CVSS Score
4.8
EPSS Score
0.002
Published
2025-10-09
An improper input neutralization vulnerability in the management web interface of the Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and execute arbitrary commands.
The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators.
Cloud NGFW and Prisma® Access are not affected by this vulnerability.
CVSS Score
5.5
EPSS Score
0.008
Published
2025-10-09
An improper access control vulnerability in the Endpoint Traffic Policy Enforcement https://docs.paloaltonetworks.com/globalprotect/6-0/globalprotect-app-new-features/new-features-released-in-gp-app/endpoint-traffic-policy-enforcement feature of the Palo Alto Networks GlobalProtect™ app allows certain packets to remain unencrypted instead of being properly secured within the tunnel.
An attacker with physical access to the network can inject rogue devices to intercept these packets. Under normal operating conditions, the GlobalProtect app automatically recovers from this interception within one minute.
CVSS Score
1.0
EPSS Score
0.002
Published
2025-06-13
A command injection vulnerability in Palo Alto Networks PAN-OS® enables an authenticated administrative user to perform actions as the root user.
The attacker must have network access to the management web interface and successfully authenticate to exploit this issue.
Cloud NGFW and Prisma Access are not impacted by this vulnerability.
CVSS Score
8.6
EPSS Score
0.01
Published
2025-06-13
An improper neutralization of wildcards vulnerability in the log collection feature of Palo Alto Networks GlobalProtect™ app on macOS allows a non administrative user to escalate their privileges to root.
CVSS Score
8.5
EPSS Score
0.004
Published
2025-06-13