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The Shadowserver Foundation has revealed that over 900 Sangoma FreePBX instances still remain infected with web shells as part of attacks that exploited a command injection vulnerability starting in December 2025. Of these, 401 instances are located in the U.S., followed by 51 in Brazil, 43 in Canada, 40 in Germany, and 36 in France. The non-profit entity said the compromises are likely accomplished via the exploitation of CVE-2025-64328 (CVSS score: 8.6), a high-severity security flaw that could enable post-authentication command injection. "The impact is that any user with access to the FreePBX Administration panel could leverage this vulnerability to execute arbitrary shell commands on the underlying host," FreePBX said in an advisory for the flaw in November 2025. "An attacker could leverage this to obtain remote access to the system as the asterisk user." The vulnerability affects FreePBX versions higher than and including 17.0.2.36. It was resolved in...

A newly disclosed maximum-severity security flaw in Cisco Catalyst SD-WAN Controller (formerly vSmart) and Catalyst SD-WAN Manager (formerly vManage) has come under active exploitation in the wild as part of malicious activity that dates back to 2023. The vulnerability, tracked as CVE-2026-20127 (CVSS score: 10.0), allows an unauthenticated remote attacker to bypass authentication and obtain administrative privileges on an affected system by sending a crafted request. Successful exploitation of the flaw could allow the adversary to obtain elevated privileges and log in to the system as an internal, high-privileged, non-root user account. "This vulnerability exists because the peering authentication mechanism in an affected system is not working properly," Cisco said in an advisory, adding the threat actor could leverage the non-root user account to access NETCONF and manipulate network configuration for the SD-WAN fabric.  The shortcoming affects the following deploym...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a recently disclosed vulnerability in FileZen to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-25108 (CVSS v4 score: 8.7), is a case of operating system (OS) command injection that could allow an authenticated user to execute arbitrary commands via specially crafted HTTP requests. "Soliton Systems K.K FileZen contains an OS command injection vulnerability when a user logs-in to the affected product and sends a specially crafted HTTP request," CISA said. According to the Japan Vulnerability Notes (JVN), the vulnerability affects the following versions of the file transfer product - Versions 4.2.1 to 4.2.8 Versions 5.0.0 to 5.0.10 Soliton noted in its advisory that successful exploitation of the issue is only possible when FileZen Antivirus Check Option is enabled, adding it has "received at le...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added two security flaws impacting Roundcube webmail software to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerabilities in question are listed below - CVE-2025-49113 (CVSS score: 9.9) - A deserialization of untrusted data vulnerability that allows remote code execution by authenticated users because the _from parameter in a URL is not validated in program/actions/settings/upload.php. (Fixed in June 2025 ) CVE-2025-68461 (CVSS score: 7.2) - A cross-site scripting vulnerability via the animate tag in an SVG document. (Fixed in December 2025 ) Dubai-based cybersecurity company FearsOff, whose founder and CEO, Kirill Firsov, was credited with discovering and reporting CVE-2025-49113, said attackers have already " diffed and weaponized the vulnerability " within 48 hours of public disclosure of the flaw. An exploit for the vulnerability wa...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added four security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2026-2441 (CVSS score: 8.8) - A use-after-free vulnerability in Google Chrome that could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. CVE-2024-7694 (CVSS score: 7.2) - An arbitrary file upload vulnerability in TeamT5 ThreatSonar Anti-Ransomware versions 3.4.5 and earlier that could allow an attacker to upload malicious files and achieve arbitrary system command execution on the server. CVE-2020-7796 (CVSS score: 9.8) - A server-side request forgery (SSRF) vulnerability in Synacor Zimbra Collaboration Suite (ZCS) that could allow an attacker to send a crafted HTTP request to a remote host and obtain unauthorized access to sensitive information. CVE-2008-0015 (CVSS score: 8.8) - ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered Federal Civilian Executive Branch (FCEB) agencies to strengthen asset lifecycle management for edge network devices and remove those that no longer receive security updates from original equipment manufacturers (OEMs) over the next 12 to 18 months. The agency said the move is to drive down technical debt and minimize the risk of compromise, as state-sponsored threat actors turn such devices as a preferred access pathway for breaking into target networks. Edge devices is an umbrella term that encompasses load balancers, firewalls, routers, switches, wireless access points, network security appliances, Internet of Things (IoT) edge devices, software-defined networks, and other physical or virtual networking components that route network traffic and hold privileged access. "Persistent cyber threat actors are increasingly exploiting unsupported edge devices -- hardware and software that no longer receiv...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a critical security flaw impacting SolarWinds Web Help Desk (WHD) to its Known Exploited Vulnerabilities ( KEV ) catalog, flagging it as actively exploited in attacks. The vulnerability, tracked as CVE-2025-40551 (CVSS score: 9.8), is a untrusted data deserialization vulnerability that could pave the way for remote code execution. "SolarWinds Web Help Desk contains a deserialization of untrusted data vulnerability that could lead to remote code execution, which would allow an attacker to run commands on the host machine," CISA said. "This could be exploited without authentication." SolarWinds issued fixes for the flaw last week, along with CVE-2025-40536 (CVSS score: 8.1), CVE-2025-40537 (CVSS score: 7.5), CVE-2025-40552 (CVSS score: 9.8), CVE-2025-40553 (CVSS score: 9.8), and CVE-2025-40554 (CVSS score: 9.8), in WHD version 2026.1. There are currently no public reports about ...

Ivanti has rolled out security updates to address two security flaws impacting Ivanti Endpoint Manager Mobile (EPMM) that have been exploited in zero-day attacks, one of which has been added by the U.S. Cybersecurity and Infrastructure Security Agency ( CISA ) to its Known Exploited Vulnerabilities (KEV) catalog. The critical-severity vulnerabilities are listed below - CVE-2026-1281 (CVSS score: 9.8) - A code injection allowing attackers to achieve unauthenticated remote code execution CVE-2026-1340 (CVSS score: 9.8) - A code injection allowing attackers to achieve unauthenticated remote code execution They affect the following versions - EPMM 12.5.0.0 and prior, 12.6.0.0 and prior, and 12.7.0.0 and prior (Fixed in RPM 12.x.0.x) EPMM 12.5.1.0 and prior and 12.6.1.0 and prior (Fixed in RPM 12.x.1.x) However, it bears noting that the RPM patch does not survive a version upgrade and must be reapplied if the appliance is upgraded to a new version. The vulnerabilities will...

Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks. The vulnerability, tracked as CVE-2026-21509 , carries a CVSS score of 7.8 out of 10.0. It has been described as a security feature bypass in Microsoft Office. "Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally," the tech giant said in an advisory. "This update addresses a vulnerability that bypasses OLE mitigations in Microsoft 365 and Microsoft Office, which protect users from vulnerable COM/OLE controls." Successful exploitation of the flaw relies on an attacker sending a specially crafted Office file and convincing recipients to open it. It also noted that the Preview Pane is not an attack vector. The Windows maker said customers running Office 2021 and later will be automatically protected via a service-side change , but will b...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a critical security flaw affecting Broadcom VMware vCenter Server that was patched in June 2024 to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation in the wild. The vulnerability in question is CVE-2024-37079 (CVSS score: 9.8), which refers to a heap overflow in the implementation of the DCE/RPC protocol that could allow a bad actor with network access to vCenter Server to achieve remote code execution by sending a specially crafted network packet. It was resolved by Broadcom in June 2024, along with CVE-2024-37080, another heap overflow in the implementation of the DCE/RPC protocol that could lead to remote code execution. Chinese cybersecurity company QiAnXin LegendSec researchers Hao Zheng and Zibo Li were credited with discovering and reporting the issues. In a presentation at the Black Hat Asia security conference in April 2025, the researchers said ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added four security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2025-68645 (CVSS score: 8.8) - A PHP remote file inclusion vulnerability in Synacor Zimbra Collaboration Suite (ZCS) that could allow a remote attacker to craft requests to the "/h/rest" endpoint and allow inclusion of arbitrary files from the WebRoot directory without any authentication (Fixed in November 2025 with version 10.1.13 ) CVE-2025-34026 (CVSS score: 9.2) - An authentication bypass in the Versa Concerto SD-WAN orchestration platform that could allow an attacker to access administrative endpoints (Fixed in April 2025 with version 12.2.1 GA ) CVE-2025-31125 (CVSS score: 5.3) - An improper access control vulnerability in Vite Vitejs that could allow contents of arbitrary files to be returned to the bro...

Cisco has released fresh patches to address what it described as a "critical" security vulnerability impacting multiple Unified Communications (CM) products and Webex Calling Dedicated Instance that it has been actively exploited as a zero-day in the wild. The vulnerability, CVE-2026-20045 (CVSS score: 8.2), could permit an unauthenticated remote attacker to execute arbitrary commands on the underlying operating system of a susceptible device. "This vulnerability is due to improper validation of user-supplied input in HTTP requests," Cisco said in an advisory. "An attacker could exploit this vulnerability by sending a sequence of crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root." The critical rating for the flaw is due to the fact that its exploitation could allow for privil...

Chinese-speaking threat actors are suspected to have leveraged a compromised SonicWall VPN appliance as an initial access vector to deploy a VMware ESXi exploit that may have been developed as far back as February 2024. Cybersecurity firm Huntress, which observed the activity in December 2025 and stopped it before it could progress to the final stage, said it may have resulted in a ransomware attack. Most notably, the attack is believed to have exploited three VMware vulnerabilities that were disclosed as zero-days by Broadcom in March 2025: CVE-2025-22224 (CVSS score: 9.3), CVE-2025-22225 (CVSS score: 8.2), and CVE-2025-22226 (CVSS score: 7.1). Successful exploitation of the issue could permit a malicious actor with admin privileges to leak memory from the Virtual Machine Executable (VMX) process or execute code as the VMX process. That same month, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the flaws to the Known Exploited Vulnerabilities (KEV) ca...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added two security flaws impacting Microsoft Office and Hewlett Packard Enterprise (HPE) OneView to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerabilities are listed below - CVE-2009-0556 (CVSS score: 8.8) - A code injection vulnerability in Microsoft Office PowerPoint that allows remote attackers to execute arbitrary code by means of memory corruption CVE-2025-37164 (CVSS score: 10.0) - A code injection vulnerability in HPW OneView that allows a remote unauthenticated user to perform remote code execution Details of CVE-2025-37164 emerged last month when HPE said the vulnerability impacts all versions of the software prior to version 11.00. The company also made available hotfixes for OneView versions 5.20 through 10. The scope and source of the attacks targeting the two flaws is presently unclear, and there appear to be no public repor...

WatchGuard has released fixes to address a critical security flaw in Fireware OS that it said has been exploited in real-world attacks. Tracked as CVE-2025-14733 (CVSS score: 9.3), the vulnerability has been described as a case of out-of-bounds write affecting the iked process that could allow a remote unauthenticated attacker to execute arbitrary code. "This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer," the company said in a Thursday advisory. "If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured." The vulnerability impacts the following versions of Fireware OS - 2025.1 - Fixed in 2025.1.4 12.x - Fixed in 12.11.6 1...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical flaw impacting ASUS Live Update to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2025-59374 (CVSS score: 9.3), has been described as an "embedded malicious code vulnerability" introduced by means of a supply chain compromise that could allow attackers to perform unintended actions. "Certain versions of the ASUS Live Update client were distributed with unauthorized modifications introduced through a supply chain compromise," according to a description of the flaw published in CVE.org. "The modified builds could cause devices meeting specific targeting conditions to perform unintended actions. Only devices that met these conditions and installed the compromised versions were affected." It's worth noting that the vulnerability refers to a supply chain attack that came to ligh...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a high-severity flaw impacting Sierra Wireless AirLink ALEOS routers to its Known Exploited Vulnerabilities ( KEV ) catalog, following reports of active exploitation in the wild. CVE-2018-4063 (CVSS score: 8.8/9.9) refers to an unrestricted file upload vulnerability that could be exploited to achieve remote code execution by means of a malicious HTTP request. "A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver," the agency said. "An attacker can make an authenticated HTTP request to trigger this vulnerability." Details of the six-year-old flaw were publicly shared by Cisco Talos in April 2019, describing it as an exploitable remote code execution vulnerability in the ACEManager "upload.cgi" function of Sierra Wireless AirLink ES450 firmware version 4.9.3. Talos reported the flaw to the Canadia...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a critical security flaw impacting Oracle Identity Manager to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerability in question is CVE-2025-61757 (CVSS score: 9.8), a case of missing authentication for a critical function that can result in pre-authenticated remote code execution. The vulnerability affects versions 12.2.1.4.0 and 14.1.2.1.0. It was addressed by Oracle as part of its quarterly updates released last month. "Oracle Fusion Middleware contains a missing authentication for a critical function vulnerability, allowing unauthenticated remote attackers to take over Identity Manager," CISA said. Searchlight Cyber researchers Adam Kues and Shubham Shah, who discovered the flaw, said it can permit an attacker to access API endpoints that, in turn, can allow them "to manipulate authentication flows, escalate privileges, and ...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical security flaw impacting WatchGuard Fireware to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The vulnerability in question is CVE-2025-9242 (CVSS score: 9.3), an out-of-bounds write vulnerability affecting Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.11.3 and 2025.1. It was patched by WatchGuard in September. "WatchGuard Firebox contains an out-of-bounds write vulnerability in the OS iked process that may allow a remote unauthenticated attacker to execute arbitrary code," CISA said in an advisory. Details of the vulnerability were shared by watchTowr Labs last month, with the cybersecurity company stating that the issue stems from a missing length check on an identification buffer used during the IKE handshake process. "The server does attempt certificate validation, but that valid...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a high-severity security flaw impacting Broadcom VMware Tools and VMware Aria Operations to its Known Exploited Vulnerabilities ( KEV ) catalog, following reports of active exploitation in the wild. The vulnerability in question is CVE-2025-41244 (CVSS score: 7.8), which could be exploited by an attacker to attain root level privileges on a susceptible system. "Broadcom VMware Aria Operations and VMware Tools contain a privilege defined with unsafe actions vulnerability," CISA said in an alert. "A malicious local actor with non-administrative privileges having access to a VM with VMware Tools installed and managed by Aria Operations with SDMP enabled may exploit this vulnerability to escalate privileges to root on the same VM." The vulnerability was addressed by Broadcom-owned VMware last month, but not before it was exploited as a zero-day by unknown threat actors since mid-Oct...