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December 2025

Vulnerabilities first published in this month (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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  • Critical 10.0
    CVE-2025-52691 Exploited · Ransomware Public exploit Scanner template EPSS 86%

    Upload Arbitrary Files

    Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.

    SmarterTools SmarterMail
    KEV Jan 26, 2026
  • Critical 10.0
    CVE-2025-68613 Exploited Public exploit Scanner template EPSS 99%

    n8n Vulnerable to Remote Code Execution via Expression Injection

    n8n is an open source workflow automation platform. Versions starting with 0.211.0 and prior to 1.120.4, 1.121.1, and 1.122.0 contain a critical Remote Code Execution (RCE) vulnerability in their workflow expression evaluation system. Under certain conditions…

    n8n-io n8n n8n npm
    KEV Mar 11, 2026
  • Critical 9.3
    CVE-2025-14733 Exploited · Ransomware Public exploit EPSS 29%

    WatchGuard Firebox iked Out of Bounds Write Vulnerability

    An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may 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 co…

    WatchGuard Fireware OS
    KEV Dec 19, 2025
  • Critical 10.0
    CVE-2025-20393 Exploited Public exploit EPSS 32%

    Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability

    A vulnerability in the Spam Quarantine feature of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to execute arbitrary system commands on an affected device with root…

    Cisco Cisco Secure Email Cisco Secure Email and Web Manager Network devices
    KEV Dec 17, 2025
  • Critical 10.0
    CVE-2025-37164 Exploited Public exploit Scanner template EPSS 90%

    A remote code execution issue exists in HPE OneView.

    Hewlett Packard Enterprise (HPE) HPE OneView
    KEV Jan 7, 2026
  • Critical 9.1
    CVE-2025-59718 Exploited Public exploit EPSS 68%

    A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0…

    Fortinet FortiOS FortiProxy FortiSwitchManager Network devices
    KEV Dec 16, 2025
  • Critical 9.4
    CVE-2025-34291 Exploited Public exploit Scanner template EPSS 93%

    Langflow <= 1.6.9 CORS Misconfiguration to Token Hijack & RCE

    Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins='*' with allow_credentials=True) combined with a refresh token cookie c…

    Langflow Langflow langflow PyPI
    KEV May 21, 2026
  • Critical 10.0
    CVE-2025-55182 Exploited · Ransomware Public exploit Scanner template EPSS 100%

    React Server Components are Vulnerable to RCE

    A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vul…

    Meta react-server-dom-turbopack react-server-dom-webpack react-server-dom-parcel npm
    KEV Dec 5, 2025