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.
4 results
Jul 15, 2026KNX Association KNX Protocol Connection Authorization Option 1 Overly Restrictive Account Lockout Mechanism VulnerabilityCVE-2023-4346 · Other software · KNX Association · reported by ics-cert@hq.dhs.govExploitedHigh 7.5
KNX Association KNX Protocol Connection Authorization Option 1 contains an overly restrictive account lockout mechanism vulnerability that could allow an attacker to purge all devices without additional security options enabled and set a BCU key to lock the device.
- Product
- KNX Protocol Connection Authorization Option 1
- On CISA’s list since
- Jul 15, 2026 (federal fix deadline Jul 29, 2026)
- What to do
- Attackers are using this now. Install KNX Association’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 catalogcisa.govcisa.gov
May 25, 2022Microsoft Silverlight Runtime Remote Code Execution VulnerabilityCVE-2016-0034 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Silverlight mishandles negative offsets during decoding, which allows attackers to execute remote code or cause a denial-of-service (DoS).
- Product
- Silverlight
- On CISA’s list since
- May 25, 2022 (federal fix deadline Jun 15, 2022)
- What to do
- Attackers are using this now. Install Microsoft’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 catalogsecuritytracker.comdocs.microsoft.com
May 25, 2022Microsoft Silverlight Information Disclosure VulnerabilityCVE-2013-3896 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedMedium 5.5
Microsoft Silverlight does not properly validate pointers during access to Silverlight elements, which allows remote attackers to obtain sensitive information via a crafted Silverlight application.
- Product
- Silverlight
- On CISA’s list since
- May 25, 2022 (federal fix deadline Jun 15, 2022)
- What to do
- Attackers are using this now. Install Microsoft’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 catalogus-cert.govdocs.microsoft.com
May 25, 2022Microsoft Silverlight Double Dereference VulnerabilityCVE-2013-0074 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Silverlight does not properly validate pointers during HTML object rendering, which allows remote attackers to execute code via a crafted Silverlight application.
- Product
- Silverlight
- On CISA’s list since
- May 25, 2022 (federal fix deadline Jun 15, 2022)
- What to do
- Attackers are using this now. Install Microsoft’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 catalogus-cert.govdocs.microsoft.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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