Known exploited vulnerabilities
Vulnerabilities CISA has confirmed are being exploited, newest additions first — with the remediation deadline federal agencies must meet.
| Score | CVE | Affected | EPSS | Added to KEV |
|---|---|---|---|---|
| 10.0 critical | CVE-2026-56290 KEV | JoomlaCK.fr Page Builder CK extension for Joomla Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0 - The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE. | 31% | 7 Jul 2026 |
| 8.4 high | CVE-2026-55255 KEV | langflow-ai langflow Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.1. | 0.89% | 7 Jul 2026 |
| 10.0 critical | CVE-2026-48908 KEV | joomshaper.net SP Page Builder extension for Joomla A vulnerability in SP Page Builder for Joomla allows unauthenticated users to upload arbitrary files, ultimately resulting in the upload and execution of PHP code. | 89% | 7 Jul 2026 |
| 8.8 high | CVE-2026-45659 KEV | Microsoft SharePoint Enterprise Server 2016 Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. | 2.7% | 1 Jul 2026 |
| 9.5 critical | CVE-2026-48558 KEV | SimpleHelp SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication. No user interaction is required. | 5.7% | 29 Jun 2026 |
| 9.3 critical | CVE-2026-12569 KEV | PTC Windchill PDMLink A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data. * This advisory also applies to all CPS versions * The identified vulnerability also impacts Windchill and FlexPLM releases prior to 11.0 M030 | 46% | 25 Jun 2026 |
| 8.6 high | CVE-2026-20230 KEV | Cisco Unified Communications Manager A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forgery (SSRF) attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to write files to the underlying operating system that could be used later to elevate to root. Note: Cisco has assigned this security advisory a Security Impact Rating (SIR) of Critical rather than High as the score indicates. The reason is that exploitation of this vulnerability could result in an attacker elevating privileges to root. Note: To exploit this vulnerability, the WebDialer service must be enabled. WebDialer is disabled by default. | 88% | 25 Jun 2026 |
| 10.0 critical | CVE-2026-34910 KEV | Ubiquiti Inc UniFi OS Server A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. | 46% | 23 Jun 2026 |
| 10.0 critical | CVE-2026-34909 KEV | Ubiquiti Inc UniFi OS Server A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account. | 1.8% | 23 Jun 2026 |
| 10.0 critical | CVE-2026-34908 KEV | Ubiquiti Inc UniFi OS Server A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS devices to make unauthorized changes to the system. | 15% | 23 Jun 2026 |
| 9.3 critical | CVE-2025-67038 KEV | Lantronix EDS5000 series An issue was discovered in Lantronix EDS5000 2.1.0.0R3. The HTTP RPC module executes a shell command to write logs when user's authentication fails. The username is directly concatenated with the command without any sanitization. This allow attackers to inject arbitrary OS commands into the username parameter. Injected commands are executed with root privileges. | 19% | 23 Jun 2026 |
| 9.8 critical | CVE-2026-20253 KEV | Splunk Enterprise In Splunk Enterprise 10.2 versions below 10.2.4 and 10 versions below 10.0.7, an unauthenticated user could create or truncate arbitrary files through a PostgreSQL sidecar service endpoint. The vulnerability exists because the PostgreSQL sidecar service endpoint lacks authentication controls, allowing any network-reachable user to invoke file operations without credentials. Splunk Enterprise versions 9.4 and earlier are not affected. If you cannot immediately upgrade to a fixed version, you can mitigate this vulnerability by disabling the PostgreSQL sidecar service. | 97% | 18 Jun 2026 |
| 10.0 critical | CVE-2026-48907 KEV | joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla A vulnerability in the JCE editor extension for Joomla allows the creation of new editor profiles for unauthenticated users, ultimately resulting in PHP code upload and execution. | 16% | 16 Jun 2026 |
| 6.5 medium | CVE-2026-20262 KEV | Cisco Catalyst SD-WAN Manager A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system. This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account. | 28% | 15 Jun 2026 |
| 8.5 high | CVE-2026-54420 KEV | LiteSpeed Technologies cPanel Plugin LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before 5.3.2.0) mishandles symlinks provided by a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS, as exploited in the wild in May 2026. | 0.81% | 15 Jun 2026 |
| 9.8 critical | CVE-2026-35273 KEV | Oracle Corporation PeopleSoft Enterprise PeopleTools Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Management). Supported versions that are affected are 8.61 and 8.62. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in takeover of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). | 9.4% | 12 Jun 2026 |
| 10.0 critical | CVE-2026-10520 KEV | ivanti Sentry An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a remote unauthenticated user to achieve root-level remote code execution | >99% | 11 Jun 2026 |
| 8.8 high | CVE-2026-11645 KEV | Google Chrome Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High) | 2.4% | 9 Jun 2026 |
| 6.9 medium | CVE-2026-7473 KEV | Arista Networks EOS On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. This occurs because the switch does not verify the tunnel protocol type, potentially leading to the unexpected processing of non-configured tunnel traffic. This issue has been reported as being exploited in the wild. | 0.65% | 9 Jun 2026 |
| 7.8 high | CVE-2026-20245 KEV | Cisco Catalyst SD-WAN Controller A vulnerability in the CLI of Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an authenticated, local attacker to execute arbitrary commands as root by supplying a crafted file to the affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user. To exploit this vulnerability, the attacker must have netadmin privileges on the affected system. This would require valid credentials or exploitation of or . Cisco is not aware of successful exploitation by other methods. Cisco has observed limited cases where the exploitation of this bug resulted in a configuration change pushed to edge devices. Cisco recommends that customers upgrade to the fixed software that is documented in the that was published on May 14, 2026, and verify the configuration of the edge devices. | 25% | 9 Jun 2026 |