Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
19 results
Sep 8, 2026ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization VulnerabilityCVE-2026-84869 · Other software · ConnectWise · reported by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49ExploitedCritical 9.9
ConnectWise ScreenConnect contains both an improper privilege management and missing authorization vulnerability that may allow an attacker to transfer and execute files through an active remote session without authorization or host confirmation.
- Product
- ScreenConnect
- On CISA’s list since
- Sep 11, 2026 (federal fix deadline Sep 14, 2026)
- What to do
- Attackers are using this now. Install ConnectWise’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comconnectwise.com
Jun 10, 2026In ScreenConnect™ versions prior to 26.2, input validation within the Host Pass creation functionality could allow an authenticated user with Host Pass creationCVE-2026-11596 · Other software · ConnectWise · reported by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49Medium 4.7
In ScreenConnect™ versions prior to 26.2, input validation within the Host Pass creation functionality could allow an authenticated user with Host Pass creation privileges the ability to specify a token expiration duration beyond the intended maximum when generating delegated access tokens.
- Product
- ScreenConnect
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 17, 2026A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthCVE-2026-3564 · Other software · ConnectWise · reported by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49Critical 9
A condition in the ScreenConnect server component may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain scenarios. ScreenConnect host and guest client agents are not independently affected by this CVE.
- Product
- ScreenConnect
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 18, 2025In deployments using the ScreenConnect™ Certificate Signing Extension, encrypted configuration values including an Azure Key Vault-related key, could be returneCVE-2025-14823 · Other software · ConnectWise · reported by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49Medium 5.3
In deployments using the ScreenConnect™ Certificate Signing Extension, encrypted configuration values including an Azure Key Vault-related key, could be returned to unauthenticated users through a client-facing endpoint under certain conditions. The values remained encrypted and securely stored at rest; however, an encrypted representation could be exposed in client responses. Updating the Certificate Signing Extension to version 1.0.12 or higher ensures configuration handling occurs exclusively on the server side, preventing encrypted values from being transmitted to or rendered by client-side components.
- Product
- ScreenConnect
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 11, 2025In versions of ScreenConnect™ prior to 25.8, server-side validation and integrity checks within the extension subsystem could allow the installation and executiCVE-2025-14265 · Other software · ConnectWise · reported by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49Critical 9.1
In versions of ScreenConnect™ prior to 25.8, server-side validation and integrity checks within the extension subsystem could allow the installation and execution of untrusted or arbitrary extensions by authorized or administrative users. Abuse of this behavior could result in the execution of custom code on the server or unauthorized access to application configuration data. This issue affects only the ScreenConnect server component; host and guest clients are not impacted. ScreenConnect 25.8 introduces enhanced server-side configuration handling and integrity checks to ensure only trusted extensions can be installed.
- Product
- ScreenConnect
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 25, 2025ConnectWise ScreenConnect Improper Authentication VulnerabilityCVE-2025-3935 · Other software · ConnectWise · reported by 7d616e1a-3288-43b1-a0dd-0a65d3e70a49ExploitedHigh 8.1
ConnectWise ScreenConnect contains an improper authentication vulnerability. This vulnerability could allow a ViewState code injection attack, which could allow remote code execution if machine keys are compromised.
- Product
- ScreenConnect
- On CISA’s list since
- Jun 2, 2025 (federal fix deadline Jun 23, 2025)
- What to do
- Attackers are using this now. Install ConnectWise’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogconnectwise.comconnectwise.com
Feb 21, 2024ConnectWise ScreenConnect Authentication Bypass VulnerabilityCVE-2024-1709 · Other software · ConnectWise · reported by 9119a7d8-5eab-497f-8521-727c672e3725ExploitedRansomwareCritical 10
ConnectWise ScreenConnect contains an authentication bypass vulnerability that allows an attacker with network access to the management interface to create a new, administrator-level account on affected devices.
- Product
- ScreenConnect
- On CISA’s list since
- Feb 22, 2024 (federal fix deadline Feb 29, 2024)
- What to do
- Attackers are using this now. Install ConnectWise’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA cataloggithub.comgithub.com
Feb 21, 2024ConnectWise ScreenConnect Path Traversal VulnerabilityCVE-2024-1708 · Other software · ConnectWise · reported by 9119a7d8-5eab-497f-8521-727c672e3725ExploitedRansomwareHigh 8.4
ConnectWise ScreenConnect contains a path traversal vulnerability which could allow an attacker to execute remote code or directly impact confidential data and critical systems.
- Product
- ScreenConnect
- On CISA’s list since
- Apr 28, 2026 (federal fix deadline May 12, 2026)
- What to do
- Attackers are using this now. Install ConnectWise’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD recordCISA catalogconnectwise.comhuntress.com
Feb 1, 2024ConnectWise ScreenConnect through 23.8.4 allows man-in-the-middle attackers to achieve remote code execution via crafted messages.CVE-2023-47257 · Other software · Connectwise · reported by MITREHigh 8.1
ConnectWise ScreenConnect through 23.8.4 allows man-in-the-middle attackers to achieve remote code execution via crafted messages.
- Product
- Automate
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordweb.archive.orgconnectwise.com
Feb 1, 2024ConnectWise ScreenConnect through 23.8.4 allows local users to connect to arbitrary relay servers via implicit trust of proxy settingsCVE-2023-47256 · Other software · Connectwise · reported by MITREMedium 5.5
ConnectWise ScreenConnect through 23.8.4 allows local users to connect to arbitrary relay servers via implicit trust of proxy settings
- Product
- Automate
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordweb.archive.orgconnectwise.com
Feb 13, 2023ConnectWise Control before 22.9.10032 (formerly known as ScreenConnect) fails to validate user-supplied parameters such as the Bin/ConnectWiseControl.Client.exeCVE-2023-25719 · Other software · Connectwise · reported by MITREHigh 8.8
ConnectWise Control before 22.9.10032 (formerly known as ScreenConnect) fails to validate user-supplied parameters such as the Bin/ConnectWiseControl.Client.exe h parameter. This results in reflected data and injection of malicious code into a downloaded executable. The executable can be used to execute malicious queries or as a denial-of-service vector. NOTE: this CVE Record is only about the parameters, such as the h parameter (this CVE Record is not about the separate issue of signed executable files that are supposed to have unique configurations across customers' installations).
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcybir.comm.youtube.com
Feb 13, 2023In ConnectWise Control through 22.9.10032 (formerly known as ScreenConnect), after an executable file is signed, additional instructions can be added without inCVE-2023-25718 · Other software · Connectwise · reported by MITRECritical 9.8
In ConnectWise Control through 22.9.10032 (formerly known as ScreenConnect), after an executable file is signed, additional instructions can be added without invalidating the signature, such as instructions that result in offering the end user a (different) attacker-controlled executable file. It is plausible that the end user may allow the download and execution of this file to proceed. There are ConnectWise Control configuration options that add mitigations.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcybir.comm.youtube.com
Sep 28, 2022ConnectWise ScreenConnect versions 22.6 and below contained a flaw allowing potential brute force attacks on custom access tokens due to inadequate rate-limitinCVE-2022-36781 · Other software · ConnectWise · reported by cna@cyber.gov.ilMedium 5.3
ConnectWise ScreenConnect versions 22.6 and below contained a flaw allowing potential brute force attacks on custom access tokens due to inadequate rate-limiting controls in the default configuration. Attackers could exploit this vulnerability to gain unauthorized access by repeatedly attempting access code combinations. ConnectWise has addressed this issue in later versions by implementing rate-limiting controls as a preventive measure against brute force attacks.
- Product
- ScreenConnect
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 23, 2020An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185.CVE-2019-16517 · Other software · Connectwise · reported by MITRECritical 9.8
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a CORS misconfiguration, which reflected the Origin provided by incoming requests. This allowed JavaScript running on any domain to interact with the server APIs and perform administrative actions, without the victim's knowledge.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.huntresslabs.comknow.bishopfox.com
Jan 23, 2020An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185.CVE-2019-16516 · Other software · Connectwise · reported by MITREMedium 5.3
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a user enumeration vulnerability, allowing an unauthenticated attacker to determine with certainty if an account exists for a given username.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordpacketstormsecurity.comblog.huntresslabs.com
Jan 23, 2020An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185.CVE-2019-16515 · Other software · Connectwise · reported by MITREMedium 6.5
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. Certain HTTP security headers are not used.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.huntresslabs.comknow.bishopfox.com
Jan 23, 2020An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185.CVE-2019-16514 · Other software · Connectwise · reported by MITREHigh 7.2
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. The server allows remote code execution. Administrative users could upload an unsigned extension ZIP file containing executable code that is subsequently executed by the server.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.huntresslabs.comknow.bishopfox.com
Jan 23, 2020An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185.CVE-2019-16513 · Other software · Connectwise · reported by MITREHigh 8.8
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. CSRF can be used to send API requests.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.huntresslabs.comknow.bishopfox.com
Jan 23, 2020An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185.CVE-2019-16512 · Other software · Connectwise · reported by MITREMedium 4.8
An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is stored XSS in the Appearance modifier.
- Product
- Control
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.huntresslabs.comknow.bishopfox.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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