A packet processing mechanism in Palo Alto Networks PAN-OS software enables a remote attacker to reboot hardware-based firewalls. Repeated attacks eventually cause the firewall to enter maintenance mode, which requires manual intervention to bring the firewall back online. This affects the following hardware firewall models: - PA-5400 Series firewalls - PA-7000 Series firewalls

Palo Alto Networks Traps ESM Console before 3.4.4 allows attackers to cause a denial of service by leveraging improper validation of requests to revoke a Traps agent license.

A vulnerability in Palo Alto Networks PAN-OS software enables a remote attacker to reboot PAN-OS firewalls when receiving Windows New Technology LAN Manager (NTLM) packets from Windows servers. Repeated attacks eventually cause the firewall to enter maintenance mode, which requires manual intervention to bring the firewall back online.

An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.

A null pointer dereference vulnerability in the GlobalProtect gateway in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop the GlobalProtect service on the firewall by sending a specially crafted packet that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.

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.

An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.

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.

A Denial of Service (DoS) vulnerability in the GlobalProtect feature of Palo Alto Networks PAN-OS software enables an unauthenticated attacker to render the service unavailable by sending a large number of specially crafted packets over a period of time. This issue affects both the GlobalProtect portal and the GlobalProtect gateway. This issue does not apply to Cloud NGFWs or Prisma Access software.

A memory corruption vulnerability in Palo Alto Networks PAN-OS software allows an unauthenticated attacker to crash PAN-OS due to a crafted packet through the data plane, resulting in a denial of service (DoS) condition. Repeated attempts to trigger this condition will result in PAN-OS entering maintenance mode.

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.

A memory leak exists in Palo Alto Networks PAN-OS software that enables an attacker to send a burst of crafted packets through the firewall that eventually prevents the firewall from processing traffic. This issue applies only to PA-5400 Series devices that are running PAN-OS software with the SSL Forward Proxy feature enabled.

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 handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail to accept connections from other clients.

An insecure configuration of the appweb daemon of Palo Alto Networks PAN-OS 8.1 allows a remote unauthenticated user to send a specifically crafted request to the device that causes the appweb service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts all versions of PAN-OS 8.0, and PAN-OS 8.1 versions earlier than 8.1.16.

A null pointer dereference vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to stop a core system service on the firewall by sending a crafted packet through the data plane that causes a denial of service (DoS) condition. Repeated attempts to trigger this condition result in the firewall entering maintenance mode.

The 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 arbitrary OS commands via an unspecified API call.

The device management command line interface (CLI) in Palo Alto Networks PAN-OS before 5.0.18, 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.

Palo Alto Networks PAN-OS 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 might allow local users to gain privileges by leveraging improper sanitization of the root_reboot local invocation.

A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect app on Windows systems allows a limited Windows user to send specifically-crafted input to the GlobalProtect app that results in a Windows blue screen of death (BSOD) error. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.8; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.4.

A vulnerability in Palo Alto Networks Broker VM allows an authenticated administrator to inject arbitrary content into certain Broker VM fields.

Secdo tries to execute a script at a hardcoded path if present, which allows a local authenticated user with 'create folders or append data' access to the root of the OS disk (C:\) to gain system privileges if the path does not already exist or is writable. This issue affects all versions of Secdo for Windows.

An improper input validation vulnerability in Palo Alto Networks PAN-OS software enables an attacker with the ability to tamper with the physical file system to elevate privileges.

Palo Alto Networks PAN-OS before 3.1.11 and 4.0.x before 4.0.9 allows remote authenticated users to cause a denial of service (management-server crash) by using the command-line interface for a crafted command, aka Ref ID 35254.

A denial-of-service (DoS) vulnerability in Palo Alto Networks GlobalProtect software running on Mac OS allows authenticated local users to cause the Mac OS kernel to hang or crash. This issue affects GlobalProtect 5.0.5 and earlier versions of GlobalProtect 5.0 on Mac OS.

Certain invalid URL entries contained in an External Dynamic List (EDL) cause the Device Server daemon (devsrvr) to stop responding. This condition causes subsequent commits on the firewall to fail and prevents administrators from performing commits and configuration changes even though the firewall remains otherwise functional. If the firewall then restarts, it results in a denial-of-service (DoS) condition and the firewall stops processing traffic. This issue impacts: PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. PAN-OS 8.1 and PAN-OS 10.1 versions are not impacted.

Improper input validation vulnerability in Secdo allows an authenticated local user with 'create folders or append data' access to the root of the OS disk (C:\) to cause a system crash on every login. This issue affects all versions Secdo for Windows.

A 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 interface gaining root access to PAN-OS. This issue affects PAN-OS 7.1 versions prior to 7.1.24-h1, 7.1.25; 8.0 versions prior to 8.0.19-h1, 8.0.20; 8.1 versions prior to 8.1.9-h4, 8.1.10; 9.0 versions prior to 9.0.3-h3, 9.0.4.

The PAN-OS management web interface page in PAN-OS 6.1.20 and earlier, PAN-OS 7.1.16 and earlier, PAN-OS 8.0.9 and earlier may allow an attacker to delete files in the system via specific request parameters.

The PAN-OS Management Web Interface in Palo Alto Networks PAN-OS 8.1.2 and earlier may allow an authenticated user to shut down all management sessions, resulting in all logged in users to be redirected to the login page. PAN-OS 6.1, PAN-OS 7.1 and PAN-OS 8.0 are NOT affected.

A 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 distinct feature configurations may enable an unauthenticated attacker to execute arbitrary code with root privileges on the firewall. Cloud NGFW, Panorama appliances, and Prisma Access are not impacted by this vulnerability.

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 allows remote attackers to execute arbitrary code via a crafted domain name.

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.

The Management Web Interface in Palo Alto Networks PAN-OS before 7.0.14 and 7.1.x before 7.1.9 allows remote attackers to write to export files via unspecified parameters.

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 attackers to execute arbitrary code via vectors involving the management interface.

When SSL/TLS Forward Proxy Decryption mode has been configured to decrypt the web transactions, the PAN-OS URL filtering feature inspects the HTTP Host and URL path headers for policy enforcement on the decrypted HTTPS web transactions but does not consider Server Name Indication (SNI) field within the TLS Client Hello handshake. This allows a compromised host in a protected network to evade any security policy that uses URL filtering on a firewall configured with SSL Decryption in the Forward Proxy mode. A malicious actor can then use this technique to evade detection of communication on the TLS handshake phase between a compromised host and a remote malicious server. This technique does not increase the risk of a host being compromised in the network. It does not impact the confidentiality or availability of a firewall. This is considered to have a low impact on the integrity of the firewall because the firewall fails to enforce a policy on certain traffic that should have been blocked. This issue does not impact the URL filtering policy enforcement on clear text or encrypted web transactions. This technique can be used only after a malicious actor has compromised a host in the protected network and the TLS/SSL Decryption feature is enabled for the traffic that the attacker controls. Palo Alto Networks is not aware of any malware that uses this technique to exfiltrate data. This issue is applicable to all current versions of PAN-OS. This issue does not impact Panorama or WF-500 appliances.

An OS command injection and memory corruption vulnerability in the PAN-OS management web interface that allows authenticated administrators to disrupt system processes and potentially execute arbitrary code and OS commands with root privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

In the MZ Automation LibIEC61850 in versions prior to 1.5.1 an unauthenticated attacker can craft a goose message, which may result in a denial of service.

Cisco IOS 15.1(2)T allows remote attackers to cause a denial of service (resource consumption and TCP outage) via spoofed TCP packets, related to embryonic TCP connections that remain in the SYN_RCVD or SYN_SENT state, aka Bug ID CSCti18193.

Microsoft .NET Framework 2.0 SP2, 3.5, 3.5 SP1, 3.5.1, 4, and 4.5 does not properly parse a DTD during XML digital-signature validation, which allows remote attackers to cause a denial of service (application crash or hang) via a crafted signed XML document, aka "Entity Expansion Vulnerability."

In nr modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed.

AyeView 2.20 allows user-assisted attackers to cause a denial of service (memory consumption or application crash) via a bitmap (aka .bmp) file with large height and width values.

TS3 Manager is modern web interface for maintaining Teamspeak3 servers. A Denial of Dervice vulnerability has been identified in versions 2.2.1 and earlier. The vulnerability permits an unauthenticated actor to crash the application through the submission of specially crafted Unicode input, requiring no prior authentication or privileges. The flaw manifests when Unicode tag characters are submitted to the Server field on the login page. The application fails to properly handle these characters during the ASCII conversion process, resulting in an unhandled exception that terminates the application within four to five seconds of submission. This issue is fixed in version 2.2.2.

CodeMeter (All versions prior to 6.81) and the software using it may crash while processing a specifically crafted license file due to unverified length fields.

In nr modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed.

In nr modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additional execution privileges needed.

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes. During verification, Authlib decodes and parses the full input before it is rejected, driving CPU and memory consumption to hostile levels and enabling denial of service. Version 1.6.5 patches the issue. Some temporary workarounds are available. Enforce input size limits before handing tokens to Authlib and/or use application-level throttling to reduce amplification risk.

When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentication sessions to fail. Invalid BASE64 data can be used to DoS a vulnerable server to break concurrent logins. Install fixed version or disable concurrency in login processes (heavy perfomance penalty on large deployments). No publicly available exploits are known.

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Versions 1.2.0 through 1.8.7, 2.0.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.7 and 3.0.18 are vulnerable to malicious API requests which can crash the API server and cause denial of service to legitimate clients. With the default configuration, no webhook.gogs.secret set, Argo CD’s /api/webhook endpoint will crash the entire argocd-server process when it receives a Gogs push event whose JSON field commits[].repo is not set or is null. This issue is fixed in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.

Huawei Quidway S9700, S5700, S5300, S9300, and S7700 switches with software before V200R003SPH012 allow remote attackers to cause a denial of service (switch restart) via crafted traffic.

Delta Electronics DVP15MC11T lacks proper validation of the modbus/tcp packets and can lead to denial of service.