Pan Os
CVE-2026-0227
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Unauthenticated remote attackers can crash Palo Alto Networks PAN-OS firewalls through repeated requests, forcing the devices into maintenance mode and causing denial of service. This vulnerability affects Palo Alto firewalls and Prisma Access deployments with no available patch, creating ongoing operational risk. The attack requires no authentication or user interaction and can be exploited over the network.
Technical ContextAI
Classified as CWE-754 (Improper Check for Unusual or Exceptional Conditions). Affects Pan-Os. 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.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Palo Alto Networks PAN-OS management web interface contains an authentication bypass allowing unauthenticated attackers
GNU wget before 1.18 allows remote servers to write to arbitrary files by redirecting a request from HTTP to a crafted F
Buffer overflow in the management web interface in Palo Alto Networks PAN-OS before 5.0.20, 5.1.x before 5.1.13, 6.0.x b
A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL proto
Palo Alto Networks PAN-OS management interface contains an authenticated file read vulnerability allowing reading of fil
An authentication bypass in Palo Alto Networks PAN-OS software enables an unauthenticated attacker with network access t
An OS Command Injection vulnerability in the PAN-OS management interface that allows authenticated administrators to exe
A privilege escalation vulnerability in Palo Alto Networks PAN-OS software allows a PAN-OS administrator with access to
A reflected cross-site scripting (XSS) vulnerability exists in the PAN-OS management web interface. Rated high severity
The device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.12, 4.0.x before 4.0.10, and 4.1.x
Remote Code Execution in PAN-OS 7.1.18 and earlier, PAN-OS 8.0.11-h1 and earlier, and PAN-OS 8.1.2 and earlier with Glob
The DNS Proxy in Palo Alto Networks PAN-OS before 6.1.18, 7.x before 7.0.16, 7.1.x before 7.1.11, and 8.x before 8.0.3 a
Same technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today