Node2Shell Remote Code Execution
CVE-2026-111497 is an out-of-bounds write vulnerability in Google's Brotli decoder, a component used to decompress data encoded with the Brotli compression algorithm. Brotli is widely used in web communications and is incorporated into software libraries, runtimes, and HTTP clients, including Node.js. |
PHP2Shell Remote Code Execution Vulnerabilities
Successful exploitation could allow attackers to execute arbitrary code within the PHP application process, potentially compromising the affected server and exposing sensitive data, application files, or connected databases, depending on the process privileges and system configuration.
FortiGuard Labs is monitoring the PHP2Shell vulnerabilities and related threat activity. Updates will be provided as new threat intelligence emerges and additional protections become available. Organizations are advised to apply the relevant security updates and consult the FortiGuard coverage information for the latest protection status. |
Atlassian Arbitrary File Access Vulnerability
CVE-2026-21589 is a critical arbitrary file access vulnerability affecting multiple Atlassian Data Center products, including Bitbucket, Confluence, Jira Software, Jira Service Management, Bamboo, Crowd, Crucible, and Fisheye. The vulnerability allows an unauthenticated remote attacker to access specific files within an affected application's web root directory.
Exploitation requires the attacker to know the exact name and path of the target file in advance. The vulnerability does not provide directory listing or file enumeration capabilities by itself. Depending on the files exposed and the application configuration, successful exploitation could disclose sensitive information and potentially support further attacks. |
GitLab Path Traversal Vulnerability
FortiGuard Labs has observed attack activity targeting CVE-2026-85706, a critical path traversal vulnerability in GitLab Community Edition and Enterprise Edition. The vulnerability affects the repository commits API and can allow an unauthenticated remote attacker to read arbitrary files from a vulnerable GitLab server due to improper path confinement and missing authentication enforcement. The vulnerability carries a CVSS score of 10.0 and requires no privileges or user interaction.
CVE-2026-85706 was added to the CISA Known Exploited Vulnerabilities catalog on September 11, 2026. Public exploit and proof-of-concept material has also emerged, increasing the potential for exploitation against exposed, unpatched GitLab instances. |
Orkes Conductor Evaluator Remote Code Execution
Attackers are actively targeting Orkes Conductor servers vulnerable to CVE-2026-58138, a critical unauthenticated remote code execution vulnerability in its GraalVM script evaluators. FortiGuard telemetry is observing active attack attempts targeting vulnerable Orkes Conductor deployments.
The vulnerability allows an unauthenticated attacker to submit a malicious workflow definition containing JavaScript or Python expressions to the Conductor workflow API. Because vulnerable evaluators can be configured with unrestricted host access, the attacker can escape the intended scripting environment and execute arbitrary operating system commands with the privileges of the Conductor process.
Public proof-of-concept exploit code is available, including a working exploit targeting Conductor v3.23.0. Exploit material has also been published through Exploit-DB, increasing the likelihood of opportunistic scanning and exploitation of exposed deployments. |
QuickFox Supply Chain Attack
FortiGuard Labs has uncovered a long-running supply chain compromise targeting QuickFox, a Windows VPN/network acceleration application primarily used by overseas Chinese users. Attackers tampered with official Windows installers to deploy a custom backdoor tracked as FDMTP, enabling selective victim profiling and post-compromise access. The campaign has reportedly been active since August 2025 before being publicly disclosed in August 2026. |
WP2Shell RCE
FortiGuard Labs continues to detect exploitation attempts targeting the WP2Shell attack chain (CVE-2026-63030 and CVE-2026-60137), a critical unauthenticated remote code execution (RCE) vulnerability affecting WordPress Core. Telemetry collected over the past seven days shows the highest volume of blocked attacks originating from or targeting Poland, Australia, Japan, the United States, and Turkey. |
Palo Alto Networks PAN-OS GlobalProtect Auth Bypass
Attackers are actively exploiting a PAN-OS GlobalProtect authentication bypass vulnerability to gain unauthorized VPN access to exposed Palo Alto Networks firewalls. An attacker who successfully exploits CVE-2026-0257 can:
- Establish unauthorized VPN sessions through affected GlobalProtect gateways.
- Bypass authentication controls without valid user credentials.
- Gain network-level access typically reserved for authenticated VPN users.
- Potentially facilitate further reconnaissance, lateral movement, or follow-on attacks within the victim environment. |
Joomla SP Page Builder RCE
FortiGuard Labs continues to observe active exploitation of CVE-2026-48908, a critical unauthenticated remote code execution vulnerability affecting the JoomShaper SP Page Builder extension for Joomla. At the time of release, FortiGuard telemetry recorded 1,210 blocked exploitation attempts in the last 24 hours and 15,626 attempts over the past 7 days.
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Ivanti Sentry OS Command Injection Vulnerability
FortiGuard Labs continues to observe exploitation attempts targeting CVE-2026-10520 following the public release of technical details and proof-of-concept (PoC) exploit code. At the time of publication, FortiGuard telemetry recorded 886 blocked attempts in the last 24 hours and 8,406 over the past 7 days, with weekly activity increasing by 82%. The Technology, Automotive, Banking/Finance/Insurance, and Education sectors remain among the most targeted. |
Langflow Unauth RCE Attack
FortiGuard Labs has observed a significant uptick in attacks targeting Langflow, leveraging a recently discovered authentication bypass vulnerability that allows unauthenticated remote attackers to fully compromise affected servers. |
HTTP/2 Bomb Denial-of-Service Vulnerability
Security researchers have disclosed a new denial-of-service (DoS) attack technique dubbed HTTP/2 Bomb, tracked as CVE-2026-49975, that affects multiple major HTTP/2 server implementations.
Unlike traditional volumetric DDoS attacks, HTTP/2 Bomb does not require a large botnet. Researchers demonstrated that a single attacker operating from a modest internet connection can generate sufficient resource exhaustion to disrupt vulnerable servers. |
Citrix NetScaler Memory Overread Vulnerability
Exploitation activity targeting vulnerable Citrix NetScaler ADC and Gateway appliances remains persistent and widespread, with FortiGuard Labs telemetry continuously observing attack attempts from global sources probing exposed NetScaler SAML endpoints for vulnerable configurations.
Analysis from FortiGuard IPS sensors shows sustained targeting of internet-facing NetScaler deployments configured as SAML Identity Providers (IdP). Attackers continue using malformed authentication requests to exploit the memory overread condition associated with CVE-2026-3055, potentially exposing sensitive session data, authentication tokens, and credential material. |
Cisco ASA and FTD Firewall RCE
Critical zero-day vulnerabilities affecting Cisco Secure Firewall Adaptive Security Appliance (ASA) and Cisco Secure Firewall Threat Defense (FTD) software have been actively exploited in the wild. The campaign is widespread and involves exploiting zero-day vulnerabilities to gain unauthenticated remote code execution on ASAs, as well as manipulating read-only memory (ROM) to persist through reboot and system upgrade. This activity presents a significant risk to victim networks. |
SmarterTools SmarterMail RCE
An actively targeted vulnerability has been identified in SmarterTools SmarterMail, tracked as CVE-2025-52691, with a CVSS score of 10.0 (Critical). The flaw allows unauthenticated attackers to upload arbitrary files to any location on the mail server, potentially resulting in remote code execution (RCE).
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React2Shell Remote Code Execution
React2Shell is a critical unauthenticated remote code execution (RCE) vulnerability affecting React Server Components (RSC) and frameworks that implement the Flight protocol, including specific vulnerable versions of Next.js. A remote attacker can craft a malicious RSC request that triggers server-side deserialization, leading to arbitrary code execution without authentication or user interaction. |
Iran-linked Cyber Attacks
This report provides an overview of ongoing Iran-linked cyber operations, highlighting activity attributed to state-aligned proxies and hacktivist groups. The vulnerabilities listed are suspected to be exploited by actors associated with Iran in real-world campaigns, consistent with observed tactics, techniques, and procedures (TTPs).
Iran-linked operations continue to rely on distributed, lower-complexity techniques, including phishing, DDoS, data exfiltration, and destructive attacks. Initial access is primarily achieved through exploitation of known, unpatched vulnerabilities and exposed edge infrastructure, reflecting a persistent and opportunistic threat posture targeting government, critical infrastructure, and enterprise environments. |
Interlock Ransomware Attack
An active Interlock ransomware campaign is exploiting a critical vulnerability (CVE-2026-20131) in Cisco Secure Firewall Management Center (FMC), enabling unauthenticated remote code execution as root. The campaign combines edge-device exploitation, custom malware tooling, and double extortion tactics, indicating a mature and targeted ransomware operation. |
Outbreak Alert- Annual Report 2025
In 2025, the FortiGuard Labs team processed and blocked 3.8 trillion vulnerability exploitation attempts, preventing 2.71 billion malware deliveries, and blocking 257 million newly seen malware variants worldwide to protect its customers from cyber threats. Through the outbreak alert system, FortiGuard Labs escalated the significant threats to raise awareness and keep customers informed. |
Versa Concerto SD-WAN Authentication Bypass
Multiple critical security vulnerabilities in the Versa Concerto network security and SD-WAN orchestration platform. When chained, these flaws could allow remote attackers to bypass authentication, escape Docker containers, and fully compromise both the application and the underlying host system. |
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