Stay updated on the latest bypass techniques threatening information security. Discover defenses and trends in system vulnerabilities with our insights.
Search across headline titles and summaries.
Background for this topic.
Bypass describes attacker methods that circumvent specific security controls, such as authentication checks, input validation, or detection systems, without directly exploiting the underlying vulnerability. These techniques often leverage design flaws, misconfigurations, or protocol weaknesses to evade protections like firewalls, multi-factor authentication, or antivirus scanning.
Bypassing controls can enable unauthorized access, data exfiltration, or persistent presence while avoiding alerts, complicating detection and response. Effective defense requires layered security measures, rigorous configuration management, and continuous validation of control effectiveness to identify and close bypass paths before attackers exploit them.
Weekly headline count for the current query.
Palo Alto Networks is warning that hackers are now exploiting a PAN-OS GlobalProtect authentication bypass flaw, tracked as CVE-2026-0257, in attacks attempting to breach corporate networks. [...]
Hackers are exploiting an authentication bypass vulnerability (CVE-2026-35616) in FortiClient Enterprise Management Server (EMS) to deliver an undocumented credential stealer called EKZ. [...]
Cisco is warning that a critical Catalyst SD-WAN Controller authentication bypass flaw, tracked as CVE-2026-20182, was actively exploited in zero-day attacks that allowed attackers to gain administrative privileges on compromised devices. [...]
The critical CVE-2026-41940 authentication bypass vulnerability in cPanel, WHM, and WP Squared is being actively exploited in the wild and has been leveraged in attempts since late February. [...]
Cisco is warning that a critical authentication bypass vulnerability in Cisco Catalyst SD-WAN, tracked as CVE-2026-20127, was actively exploited in zero-day attacks that allowed remote attackers to compromise controllers and add malicious rogue peers to targeted networks. [...]
Fortinet has confirmed a new, actively exploited critical FortiCloud single sign-on (SSO) authentication bypass vulnerability, tracked as CVE-2026-24858, and says it has mitigated the zero-day attacks by blocking FortiCloud SSO connections from devices running vulnerable firmware versions. [...]
Fortinet customers are seeing attackers exploiting a patch bypass for a previously fixed critical FortiGate authentication vulnerability (CVE-2025-59718) to hack patched firewalls. [...]
Palo Alto Networks warns that hackers are actively exploiting a critical authentication bypass flaw (CVE-2025-0108) in PAN-OS firewalls, chaining it with two other vulnerabilities to breach devices in active attacks. [...]
Hackers are launching attacks against Palo Alto Networks PAN-OS firewalls by exploiting a recently fixed vulnerability (CVE-2025-0108) that allows bypassing authentication. [...]
Hackers have started to exploit the critical-severity authentication bypass vulnerability (CVE-2024-27198) in TeamCity On-Premises, which JetBrains addressed in an update on Monday. [...]
Hackers have started to exploit the critical-severity authentication bypass vulnerability (CVE-2024-27198) in TeamCity On-Premises, which JetBrains addressed in an update on Monday. [...]
A critical vulnerability (CVE-2024-27198) in the TeamCity On-Premises CI/CD solution from JetBrains can let a remote unauthenticated attacker take control of the server with administrative permissions. [...]
A Phemedrone information-stealing malware campaign exploits a Microsoft Defender SmartScreen vulnerability (CVE-2023-36025) to bypass Windows security prompts when opening URL files. [...]
A critical vulnerability in the F5 BIG-IP configuration utility, tracked as CVE-2023-46747, allows an attacker with remote access to the configuration utility to perform unauthenticated remote code execution. [...]
Adobe released an emergency ColdFusion security update that fixes critical vulnerabilities, including a fix for a new zero-day exploited in attacks. [...]
Sophos has fixed a critical vulnerability in its Sophos Firewall product that allows remote code execution. Tracked as CVE-2022-1040, the authentication bypass vulnerability exists in the User Portal and Webadmin areas of Sophos Firewall. [...]