Paloaltonetworks: Security Vulnerabilities
CVE-2026-0257
Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection.
Panorama and Cloud NGFW are not impacted by these issues.
Known exploited
CVSS Score
7.8
EPSS Score
0.588
Published
2026-05-13
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
0.051
Published
2026-05-06
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
0.001
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
0.0
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
0.001
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
0.001
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
0.006
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
0.002
Published
2025-06-13
An incorrect privilege assignment vulnerability in the Palo Alto Networks GlobalProtect™ App on macOS devices enables a locally authenticated non administrative user to disable the app.
The GlobalProtect app on Windows, Linux, iOS, Android, Chrome OS and GlobalProtect UWP app are not affected.
CVSS Score
5.2
EPSS Score
0.002
Published
2025-05-14
A missing exception check in Palo Alto Networks PAN-OS® software with the web proxy feature enabled allows an unauthenticated attacker to send a burst of maliciously crafted packets that causes the firewall to become unresponsive and eventually reboot. Repeated successful attempts to trigger this condition will cause the firewall to enter maintenance mode.
This issue does not affect Cloud NGFW or Prisma Access.
CVSS Score
8.2
EPSS Score
0.003
Published
2025-05-14
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