Palo Alto Networks
Palo Alto Networks warns of DoS bug letting hackers disable firewalls
Palo Alto Networks patched a high-severity vulnerability that could allow unauthenticated attackers to disable firewall protections in denial-of-service (DoS) attacks. Tracked as CVE-2026-0227, this security flaw affects next-generation firewalls (running PAN-OS 10.1 or later) and Palo Alto Networks’ Prisma Access configurations when the GlobalProtect gateway or portal is enabled. The cybersecurity company says that most […]
New password spraying attacks target Cisco, PAN VPN gateways
An automated campaign is targeting multiple VPN platforms, with credential-based attacks being observed on Palo Alto Networks GlobalProtect and Cisco SSL VPN. On December 11, threat monitoring platform GreyNoise observed the number of login attempts aimed at GlobalProtect portals peaked at 1.7 million during a period of 16 hours. Collected data showed that the attacks originated from […]
New wave of VPN login attempts targets Palo Alto GlobalProtect portals
A campaign has been observed targeting Palo Alto GlobalProtect portals with login attempts and launching scanning activity against SonicWall SonicOS API endpoints. The activity started on December 2nd and originated from more than 7,000 IP addresses from infrastructure operated by the German IT company 3xK GmbH, which runs its own BGP network (AS200373) and operates as […]
GlobalProtect VPN portals probed with 2.3 million scan sessions
Malicious scanning activity targeting Palo Alto Networks GlobalProtect VPN login portals has increased 40 times in 24 hours, indicating a coordinated campaign. Real-time intelligence company GreyNoise reports that activity began climbing on November 14 and hit its highest level in 90 days within a week. “GreyNoise has identified a significant escalation in malicious activity targeting Palo Alto […]
Massive surge in scans targeting Palo Alto Networks login portals
A spike in suspicious scans targeting Palo Alto Networks login portals indicates clear reconnaissance efforts from suspicious IP addresses, researchers warn. Cybersecurity intelligence company GreyNoise reports a 500% increase in IP addresses focused on Palo Alto Networks GlobalProtect and PAN-OS profiles. The activity culminated on October 3 with more than 1,285 unique IPs engaged in the […]
Palo Alto Networks data breach exposes customer info, support tickets
Palo Alto Networks suffered a data breach that exposed customer data and support cases after attackers abused compromised OAuth tokens from the Salesloft Drift breach to access its Salesforce instance. The company states that it was one of hundreds of companies affected by a supply-chain attack disclosed last week, in which threat actors exploited authentication tokens […]
Nearly 24,000 IPs behind wave of Palo Alto Global Protect scans
A significant spike in scanning activity targeting Palo Alto Network GlobalProtect login portals has been observed, with researchers concerned it may be a prelude to an upcoming attack or flaw being exploited. According to GreyNoise, which reports the activity, the scanning activity involves over 24,000 unique source IP addresses. The activity peaked at 20,000 unique IP […]
Palo Alto Networks tags new firewall bug as exploited in attacks
Palo Alto Networks warns that a file read vulnerability (CVE-2025-0111) is now being chained in attacks with two other flaws (CVE-2025-0108 with CVE-2024-9474) to breach PAN-OS firewalls in active attacks. The vendor first disclosed the authentication bypass vulnerability tracked as CVE-2025-0108 on February 12, 2025, releasing patches to fix the vulnerability. That same day, Assetnote […]
Hackers exploit authentication bypass in Palo Alto Networks PAN-OS
Hackers are launching attacks against Palo Alto Networks PAN-OS firewalls by exploiting a recently fixed vulnerability (CVE-2025-0108) that allows bypassing authentication. The security issue received a high-severity score and impacts the PAN-OS management web interface and allows an unauthenticated attacker on the network to bypass authentication and invoke certain PHP scripts, potentially compromising integrity and confidentiality. In […]
Hackers exploit DoS flaw to disable Palo Alto Networks firewalls
Palo Alto Networks is warning that hackers are exploiting the CVE-2024-3393 denial of service vulnerability to disable firewall protections by forcing it to reboot. Leveraging the security issue repeatedly, however, causes the device to enter maintenance mode and manual intervention is required to restore it to normal operations. “A Denial of Service vulnerability in the DNS […]