First VPN Dismantled in Global Takedown Over Use by 25 Ransomware Groups

Authorities in Europe and North America have announced the dismantling of a criminal virtual private network VPN service used by criminal actors to obscure the origins of ransomware attacks, data theft, scanning, and denial-of-service attacks. Codenamed Operation Saffron, the disruption of First...

From edge appliance to enterprise compromise: Multi-stage Linux intrusion via F5 and Confluence

In this article 1. Attack chain overview 1. Initial access: Exploiting edge appliances 2. Discovery and reconnaissance 3. Lateral movement and identity compromise 2. Mitigation and protection guidance 1. Microsoft Defender XDR detections 2. Advanced hunting 3. Indicators of compromise IOC 4. MITR...

CVE-2025-58074

A privilege escalation vulnerability exists during the installation of Norton Secure VPN via the Microsoft Store. A low-privilege user can replace files during the installation process, which may result in deletion of arbitrary files that can lead to elevation of privileges...

Webworm Deploys EchoCreep and GraphWorm Backdoors Using Discord and MS Graph API

Cybersecurity researchers have flagged fresh activity from a China-aligned threat actor known as Webworm in 2025, deploying custom backdoors that employ Discord and Microsoft Graph API for command-and-control C2 or C&C communications. Webworm, first publicly documented by Broadcom-owned Symantec ...

CVE-2026-48131 - VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero

Symptoms - The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service temporary disruption of VPN-related functionality. - The...

CVE-2026-48132 - VPN service may restart unexpectedly when processing IKE traffic over NAT-T 4500/UDP

Symptoms - The Security Gateway does not correctly validate a length value in certain IKE packets when NAT-T is used 4500/UDP. As a result, a specially crafted or malformed packet can cause the VPN processing service to terminate unexpectedly, leading to denial of service temporary interruption o...

Kieback & Peter DDC Building Controllers

ADVISORY SUMMARY Successful exploitation of this vulnerability could allow an attacker to take control of the victim's browser. 2. RECOMMENDED PRACTICES CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Minimize network exposure for all...

CVE-2026-32323

Mullvad VPN is a VPN client app for desktop and mobile. When using macOS with versions 2026.1 and below, Mullvad VPN may allow local privilege escalation during installation or upgrade. The installer package executes binaries from /Applications/Mullvad VPN.app without verifying if the bundle is...

CVE-2026-32323 Mullvad VPN for macOS: Local Privilege Escalation via unverified bundle path in installer

Mullvad VPN is a VPN client app for desktop and mobile. When using macOS with versions 2026.1 and below, Mullvad VPN may allow local privilege escalation during installation or upgrade. The installer package executes binaries from /Applications/Mullvad VPN.app without verifying if the bundle is...

CVE-2026-32323 Mullvad VPN for macOS: Local Privilege Escalation via unverified bundle path in installer

Mullvad VPN is a VPN client app for desktop and mobile. When using macOS with versions 2026.1 and below, Mullvad VPN may allow local privilege escalation during installation or upgrade. The installer package executes binaries from /Applications/Mullvad VPN.app without verifying if the bundle is...

VulnCheck KEV: CVE-2024-12802

SSL-VPN MFA Bypass in SonicWALL SSL-VPN can arise in specific cases due to the separate handling of UPN User Principal Name and SAM Security Account Manager account names when integrated with Microsoft Active Directory, allowing MFA to be configured independently for each login method and...

EUVD-2026-30104

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

CVE-2026-0257

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

CVE-2026-0248 Prisma Access Agent: Improper Certificate Validation Vulnerability

An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle MitM attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can...

CVE-2026-0248 Prisma Access Agent: Improper Certificate Validation Vulnerability

An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle MitM attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can...

CVE-2026-0257

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

CVE-2026-0257 PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

CVE-2026-0257

CVE-2026-0257 affects Palo Alto Networks PAN-OS GlobalProtect Portal and GlobalProtect Gateway (not Panorama/Cloud NGFW). The vulnerability is an authentication bypass (CWE-565) that can allow an unauthenticated attacker to bypass security restrictions and establish an unauthorized VPN connection...

PT-2026-40772

An improper certificate validation vulnerability in the Prisma Access Agent® for Android and Chrome OS enables an attacker to perform a man-in-the-middle MitM attack to intercept VPN traffic. By presenting a certificate for any domain issued by a trusted Certificate Authority, the attacker can...

PT-2026-40754

Name of the Vulnerable Software and Affected Versions PAN-OS versions prior to 10.2.7 PAN-OS version 10.2.8 PAN-OS version 10.2.9 PAN-OS version 10.2.10 PAN-OS version 10.2.11 Prisma Access affected versions not specified Description Authentication bypass flaws in the GlobalProtect portal and...