Palo Alto Networks PAN-OS

Our sources currently list 234 known vulnerabilities affecting Palo Alto Networks PAN-OS. 37 are rated critical severity. 14 of 234 are actively exploited according to CISA, the most recent added 29 May 2026.

Last updated: 22 July 2026, 20:43 AEST

No current ASD advisory names this product.That describes the Australian Signals Directorate’s publication record — it is not a statement that this product is free of vulnerabilities. See the list below.

Known vulnerabilities in Palo Alto Networks PAN-OS, highest risk first.Showing the 50 highest-risk of 234 total.
CVESeverityExploitationPublishedSummary
CVE-2024-3400Critical (10.0)Actively exploited · ransomwareA command injection as a result of arbitrary file creation vulnerability in the GlobalProtect feature of Palo Alto Networks PAN-OS software for specific PAN-OS versions and distinc…
CVE-2024-0012Critical (9.8)Actively exploited · ransomwareAn authentication bypass in Palo Alto Networks PAN-OS software enables an unauthenticated attacker with network access to the management web interface to gain PAN-OS administrator …
CVE-2025-0108Critical (9.1)Actively exploitedAn authentication bypass in the Palo Alto Networks PAN-OS software enables an unauthenticated attacker with network access to the management web interface to bypass the authenticat…
CVE-2017-15944Critical (9.8)Actively exploitedPalo 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 attackers to execute arbitrary code via vectors involving th…
CVE-2024-9474High (7.2)Actively exploited · ransomwareA privilege escalation vulnerability in Palo Alto Networks PAN-OS software allows a PAN-OS administrator with access to the management web interface to perform actions on the firew…
CVE-2026-0257Critical (9.1)Actively exploited · ransomwareAuthentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establi…
CVE-2016-5195High (7.0)Actively exploitedRace condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature …
CVE-2019-1579High (8.1)Actively exploited · ransomwareRemote 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 GlobalProtect Portal or GlobalProtect Gateway Interface enabled …
CVE-2026-0300Critical (9.8)Actively exploitedA 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 execu…
CVE-2024-3393High (7.5)Actively exploitedA 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 p…
CVE-2018-14634High (7.8)Actively exploitedAn integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use thi…
CVE-2020-2021Critical (10.0)Actively exploited · ransomwareWhen Security Assertion Markup Language (SAML) authentication is enabled and the 'Validate Identity Provider Certificate' option is disabled (unchecked), improper verification of s…
CVE-2022-0028High (8.6)Actively exploitedA PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would ap…
CVE-2025-0111Medium (6.5)Actively exploitedAn authenticated file read vulnerability in the Palo Alto Networks PAN-OS software enables an authenticated attacker with network access to the management web interface to read fil…
CVE-2020-2038High (7.2)Elevated likelihood (86%)An OS Command Injection vulnerability in the PAN-OS management interface that allows authenticated administrators to execute arbitrary OS commands with root privileges. This issue …
CVE-2020-2039Medium (5.3)Elevated likelihood (46%)An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote unauthenticated user to upload temporary files through the management web interf…
CVE-2016-4971High (8.8)Elevated likelihood (46%)GNU wget before 1.18 allows remote servers to write to arbitrary files by redirecting a request from HTTP to a crafted FTP resource.
CVE-2016-8610High (7.5)Elevated likelihood (40%)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 protocol defined processing of ALERT packets during a connection …
CVE-2016-9150Critical (9.8)Elevated likelihood (35%)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 before 6.0.15, 6.1.x before 6.1.15, 7.0.x before 7.0.11, and …
CVE-2021-3060High (8.1)Elevated likelihood (34%)An OS command injection vulnerability in the Simple Certificate Enrollment Protocol (SCEP) feature of PAN-OS software allows an unauthenticated network-based attacker with specific…
CVE-2020-2036High (8.8)Elevated likelihood (24%)A reflected cross-site scripting (XSS) vulnerability exists in the PAN-OS management web interface. A remote attacker able to convince an administrator with an active authenticated…
CVE-2021-3064Critical (9.8)Elevated likelihood (19%)A memory corruption vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to disrupt system …
CVE-2018-18065Medium (6.5)Elevated likelihood (17%)_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to …
CVE-2019-1559Medium (5.9)Elevated likelihood (17%)If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently …
CVE-2020-2034High (8.1)No exploitation reportedAn OS Command Injection vulnerability in the PAN-OS GlobalProtect portal allows an unauthenticated network based attacker to execute arbitrary OS commands with root privileges. An …
CVE-2017-8390Critical (9.8)No exploitation reportedThe 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 allows remote attackers to execute arbitrary code via a craft…
CVE-2017-15940Critical (9.8)No exploitation reportedThe 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 aut…
CVE-2016-3657Critical (9.8)No exploitation reportedBuffer overflow in the GlobalProtect Portal in Palo Alto Networks PAN-OS before 5.0.18, 6.0.x before 6.0.13, 6.1.x before 6.1.10, and 7.0.x before 7.0.5 allows remote attackers to …
CVE-2012-6603Critical (10.0)No exploitation reportedThe web management UI in Palo Alto Networks PAN-OS before 3.1.12, 4.0.x before 4.0.10, and 4.1.x before 4.1.4 allows remote attackers to bypass authentication and obtain administra…
CVE-2012-6601Critical (10.0)No exploitation reportedThe 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 before 4.1.4 allows remote attackers to execute arbitrary co…
CVE-2012-6592Critical (10.0)No exploitation reportedPalo Alto Networks PAN-OS before 3.1.10 and 4.0.x before 4.0.5 allows remote attackers to execute arbitrary commands via unspecified vectors, aka Ref ID 31091.
CVE-2012-6593Critical (10.0)No exploitation reportedPalo Alto Networks PAN-OS before 3.1.10 and 4.0.x before 4.0.4 allows remote attackers to execute arbitrary commands via unspecified vectors, aka Ref ID 30088.
CVE-2020-2040Critical (9.8)No exploitation reportedA buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a ma…
CVE-2018-10141Medium (6.1)No exploitation reportedGlobalProtect Portal Login page in Palo Alto Networks PAN-OS before 8.1.4 allows an unauthenticated attacker to inject arbitrary JavaScript or HTML.
CVE-2020-2037High (7.2)No exploitation reportedAn OS Command Injection vulnerability in the PAN-OS management interface that allows authenticated administrators to execute arbitrary OS commands with root privileges. This issue …
CVE-2020-1992High (8.1)No exploitation reportedA format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a deni…
CVE-2019-1581Critical (9.8)No exploitation reportedA remote code execution vulnerability in the PAN-OS SSH device management interface that can lead to unauthenticated remote users with network access to the SSH management interfac…
CVE-2020-2000High (7.2)No exploitation reportedAn OS command injection and memory corruption vulnerability in the PAN-OS management web interface that allows authenticated administrators to disrupt system processes and potentia…
CVE-2019-1580Critical (9.8)No exploitation reportedMemory corruption in PAN-OS 7.1.24 and earlier, PAN-OS 8.0.19 and earlier, PAN-OS 8.1.9 and earlier, and PAN-OS 9.0.3 and earlier will allow a remote, unauthenticated user to craft…
CVE-2012-6604Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.11 and 4.0.x before 4.0.9 allows remote authenticated users to execute arbitrary code via unspe…
CVE-2012-6605Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.11 and 4.0.x before 4.0.9 allows remote authenticated users to execute arbitrary code via unspe…
CVE-2016-3655Critical (9.8)No exploitation reportedThe management web interface in Palo Alto Networks PAN-OS before 5.0.18, 6.0.x before 6.0.13, 6.1.x before 6.1.10, and 7.0.x before 7.0.5 allows remote attackers to execute arbitra…
CVE-2012-6600Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS 4.0.x before 4.0.9 and 4.1.x before 4.1.2 allows remote authenticated users to execute arbitrary commands …
CVE-2012-6591Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.10 and 4.0.x before 4.0.5 allows remote authenticated administrators to execute arbitrary comma…
CVE-2012-6594Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.11, 4.0.x before 4.0.8, and 4.1.x before 4.1.1 allows remote authenticated administrators to ex…
CVE-2012-6595Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS 4.0.x before 4.0.9 and 4.1.x before 4.1.2 allows remote authenticated administrators to execute arbitrary …
CVE-2012-6598Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS 4.0.x before 4.0.8 allows remote authenticated users to execute arbitrary commands via unspecified vectors…
CVE-2012-6599Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS 4.0.x before 4.0.8 and 4.1.x before 4.1.1 allows remote authenticated users to execute arbitrary commands …
CVE-2012-6602Critical (9.0)No exploitation reportedThe device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.10 and 4.0.x before 4.0.4 allows remote authenticated users to execute arbitrary commands via u…
CVE-2015-6531High (7.8)No exploitation reportedPalo Alto Networks Panorama VM Appliance with PAN-OS before 6.0.1 might allow remote attackers to execute arbitrary Python code via a crafted firmware image file.

Vulnerability data from the NVD andCISA KEV(US Government, public domain); Australian advisories fromASD’s ACSC (CC BY 4.0). Exploit-probability scores from FIRST EPSS.

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14 of these are being actively exploited right now.

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