exploited in the wild
Zero days and other bugs attackers are using
These are the latest additions to CISA's Known Exploited Vulnerabilities catalog. Something only gets on it once there's evidence attackers have actually used it. Some were zero days (exploited before a patch existed). Every one has been seen in real attacks.
Most of this is enterprise gear: VPNs, firewalls, routers. If you ship on Vercel, Netlify, Supabase or Lovable, the host patches the servers. What's yours is your dependencies, so the entries tagged web stack are the ones worth a second look.
1,723 entries in the catalog · updated Thu, Sep 24, 2026 · showing the newest 40
$ added Thu, Sep 24, 2026
Adobe Commerce and Magento
Adobe Commerce and Magento contains an incorrect authorization vulnerability that could allow an attacker to leverage this vulnerability to gain elevated access to sensitive resources without any user interaction.
CWE-863federal patch deadline 2026-09-27vendor advisoryNVD
WSO2 Multiple Products
WSO2 API Control Plane, API Manager, Traffic Manager & Universal Gateway contain a path traversal vulnerability that could allow for unrestricted file upload and lead to remote code execution.
CWE-347federal patch deadline 2026-09-27vendor advisoryNVD
$ added Tue, Sep 22, 2026
F5 BIG-IP APM
F5 BIG-IP APM contains a heap-based buffer overflow vulnerability when access policy and an OAuth profile are configured on a virtual server. This vulnerability could allow an unauthenticated attacker to perform remote code execution.
CWE-122federal patch deadline 2026-09-25vendor advisoryNVD
Arista VeloCloud Orchestrator
Arista VeloCloud Orchestrator (VCO) on-prem contains an improper input validation vulnerability that may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator.
CWE-20federal patch deadline 2026-09-25vendor advisoryNVD
Check Point Multiple Products
Check Point Security Management Server, Multi-Domain Security Management Server, Log Server, Multi-Domain Log Server, and SmartEvent contain a path traversal vulnerability that allows an unauthenticated attacker to upload and execute arbitrary scripts.
CWE-22federal patch deadline 2026-09-25vendor advisoryNVD
Check Point Multiple Products
Check Point Security Gateway and Check Point Spark Firewall using Site to Site VPN or Remote Access VPN contain an improper certificate validation vulnerability which could allow an unauthenticated remote attacker to execute arbitrary code on the Gateway.
CWE-295federal patch deadline 2026-09-25vendor advisoryNVD
$ added Mon, Sep 21, 2026
Zyxel GS1900 Series Switches
Zyxel GS1900 series switches contain a stack-based buffer overflow vulnerability in the CGI program which could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
CWE-121federal patch deadline 2026-09-24vendor advisoryNVD
$ added Fri, Sep 18, 2026
Linux Kernel
Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
CWE-787federal patch deadline 2026-09-21vendor advisoryNVD
Linux Kernel
Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.
CWE-362federal patch deadline 2026-09-21vendor advisoryNVD
Linux Kernel
Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
CWE-754federal patch deadline 2026-09-21vendor advisoryNVD
$ added Wed, Sep 16, 2026
Acronis Backup
Acronis Backup plugin for cPanel & WHM and extension for Plesk contains an incorrect default permissions vulnerability that could allow for privilege escalation.
CWE-276federal patch deadline 2026-09-19vendor advisoryNVD
Cisco Identity Services Engine
Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) contain an incorrect use of privileged APIs vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.
CWE-648federal patch deadline 2026-09-19vendor advisoryNVD
Google Pixel
Google Pixel devices contain an improper authorization vulnerability in the cellular modem. A logic error may allow an attacker to bypass permission checks and escalate privileges.
CWE-693federal patch deadline 2026-09-19vendor advisoryNVD
$ added Mon, Sep 14, 2026
Cisco Secure Email Gateway
Cisco AsyncOS software for Cisco Secure Email Gateway (SEG) contains a SQL injection vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system.
CWE-89federal patch deadline 2026-09-17vendor advisoryNVD
$ added Fri, Sep 11, 2026
- CVE-2026-85706web stack
GitLab Community Edition and Enterprise Edition
GitLab Community Edition and Enterprise Edition contains a path traversal vulnerability that allows an unauthenticated user to read arbitrary files due to an improper path confinement and missing authentication enforcement in the repository commits API.
CWE-35federal patch deadline 2026-09-14vendor advisoryNVD
ConnectWise ScreenConnect
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.
CWE-269, CWE-862federal patch deadline 2026-09-14vendor advisoryNVD
JFrog Artifactory
JFrog Artifactory contains an improper authentication vulnerability that could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.
CWE-287federal patch deadline 2026-09-25vendor advisoryNVD
JFrog Artifactory
JFrog Artifactory contains an incorrect authorization vulnerability that leads to a privilege escalation attack due to a validation check of the token signature/issuer and not the token’s scope.
CWE-863federal patch deadline 2026-09-25vendor advisoryNVD
$ added Thu, Sep 10, 2026
MikroTik RouterOS
MikroTik RouterOS contains an improper neutralization of argument delimiters in a command vulnerability which allows an attacker to change the trusted RouterOS policy mask, leading to privilege escalation.
CWE-88federal patch deadline 2026-09-13vendor advisoryNVD
MikroTik RouterOS
MikroTik RouterOS contains a missing authentication for critical function vulnerability which allows kernel memory disclosure and denial of service in the btest service.
CWE-306federal patch deadline 2026-09-13vendor advisoryNVD
$ added Wed, Sep 9, 2026
Google Chromium V8
Google Chromium V8 contains an out of bounds write vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
CWE-787federal patch deadline 2026-09-23vendor advisoryNVD
Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management
Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain an authentication Bypass using an alternate path or channel vulnerability that could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system.
CWE-288federal patch deadline 2026-09-12vendor advisoryNVD
Citrix NetScaler
Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability involving an alternate path or channel. When the NetScaler appliance is configured as an AAA virtual server or as a Gateway (SSL VPN, ICA Proxy, CVPN, or RDP Proxy), an unauthenticated remote threat actor may be able to bypass authentication.
CWE-288federal patch deadline 2026-09-12vendor advisoryNVD
Fortinet Multiple Products
Fortinet FortiOS, FortiSwitchManager, and FortiSASE contain a heap-based buffer overflow vulnerability that allows an attacker to execute unauthorized code or commands via specially crafted packets.
CWE-122, CWE-787federal patch deadline 2026-09-12vendor advisoryNVD
$ added Tue, Sep 8, 2026
N-able N-central
N-able N-central contains a static code injection vulnerability that could allow for pre-authentication remote code execution.
CWE-96federal patch deadline 2026-09-11vendor advisoryNVD
Microsoft Windows
Microsoft Windows Advanced Local Procedure Call contains a heap-based buffer overflow vulnerability that allows an attacker to elevate privileges locally.
CWE-122, CWE-908federal patch deadline 2026-09-22vendor advisoryNVD
Microsoft Windows
Microsoft Windows Update Stack contains a link following vulnerability that allows a local attacker to escalate privileges locally up to SYSTEM.
CWE-59, CWE-284federal patch deadline 2026-09-22vendor advisoryNVD
Adobe Commerce and Magento
Adobe Commerce and Magento Open Source contain an improper neutralization of special elements used in a template engine vulnerability that could allow an attacker to execute arbitrary code.
CWE-1336federal patch deadline 2026-09-11vendor advisoryNVD
$ added Fri, Sep 4, 2026
Google Chromium V8
Google Chromium V8 contains a type confusion vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
CWE-843federal patch deadline 2026-09-18vendor advisoryNVD
$ added Wed, Sep 2, 2026
Sangoma Switchvox
Sangoma Switchvox contains a SQL injection vulnerability which allows an unauthenticated remote attacker to execute arbitrary SQL statements against the backend PostgreSQL database using a single crafted request, including database operations and remote code execution.
CWE-89federal patch deadline 2026-09-05vendor advisoryNVD
SonicWall SMA1000 Appliances
SonicWall SMA1000 Appliances contains an OS command injection vulnerability that could enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.
CWE-78federal patch deadline 2026-09-05vendor advisoryNVD
SonicWall SMA1000 Appliances
SonicWall SMA1000 Appliances contains a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to gain unauthorized access to sensitive functionality and perform unauthorized operations.
CWE-918, CWE-441federal patch deadline 2026-09-05vendor advisoryNVD
JFrog Artifactory
JFrog Artifactory contains an improper authentication vulnerability that under default configuration can allow an unauthenticated attacker with network access to obtain administrative privileges.
CWE-287federal patch deadline 2026-09-05vendor advisoryNVD
BerriAI LiteLLM
BerriAI LiteLLM contains an improper authentication vulnerability in the MCP Streamable HTTP endpoint that could allow an unauthenticated attacker to establish an authenticated MCP session using an arbitrary Bearer token.
CWE-287, CWE-306federal patch deadline 2026-09-16vendor advisoryNVD
Kestra Kestra OSS
Kestra OSS contains an OS command injection vulnerability that could allow an unauthenticated remote attacker to create and execute arbitrary workflows without credentials.
CWE-78, CWE-184, CWE-287, CWE-918federal patch deadline 2026-09-05vendor advisoryNVD
Kludex Starlette
Kludex Starlette contains a HTTP request/response smuggling vulnerability that could allow attackers to inject paths into the host part, prepending the actual path leading to issues such as authentication bypass when the authentication depends on the reconstructed URL’s path. This vulnerability could be chaned with CVE-2026-42271.
CWE-444federal patch deadline 2026-09-16vendor advisoryNVD
$ added Mon, Aug 31, 2026
PaperCut NG/MF
PaperCut NG/MF contains an unsafe reflection vulnerability that allows an attacker to manipulate system configuration parameters and execute arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process. This vulnerability can be chained with CVE-2026-81578.
CWE-470federal patch deadline 2026-09-14vendor advisoryNVD
PaperCut NG/MF
PaperCut NG/MF contains a missing authentication for critical function vulnerability which allows an unauthenticated remote attacker to modify certain system configurations. This vulnerability can be chained with CVE-2026-82078.
CWE-306federal patch deadline 2026-09-14vendor advisoryNVD
$ added Thu, Aug 27, 2026
JFrog Artifactory
JFrog Artifactory contains an improper limitation of a pathname to a restricted directory vulnerability. This can allow an authenticated user to write data outside the intended Docker cache path under specific remote-repository conditions.
CWE-22federal patch deadline 2026-09-10vendor advisoryNVD
Linux Kernel
Linux Kernel contains an unspecified vulnerability that can allow for privilege escalation via IPv6 networking subsystem. This vulnerability can impact multiple products, including but not limited to Suse, Red Hat, and other products using Linux.
federal patch deadline 2026-08-30vendor advisoryNVD
What to do with this
- If you run the product listed, patch it now or follow the vendor's advisory. CISA gives US federal agencies a deadline; you should treat it as yours too.
- For a JavaScript app,
npm audit(orpnpm audit) flags known vulnerable packages in your lockfile. GitHub's Dependabot does it for you on every push. - To hear about the ones that hit your own packages, pick your stack and get alerts: critical and high severity advisories, with the fixed version and a prompt for your AI agent.
- None of this replaces checking your own site's setup. That's what the free check is for.
Source: CISA KEV catalog, refreshed every few hours. Descriptions are CISA's own. The only thing we add is the web stack tag.