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.
6 results
May 21, 2026Trend Micro Apex One (On-Premise) Directory Traversal VulnerabilityCVE-2026-34926 · Other software · Trend Micro · reported by security@trendmicro.comExploitedMedium 6.7
Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations.
- Product
- Apex One
- On CISA’s list since
- May 21, 2026 (federal fix deadline Jun 4, 2026)
- What to do
- Attackers are using this now. Install Trend Micro’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 catalogjvn.jpsuccess.trendmicro.com
Aug 18, 2025Trend Micro Apex One OS Command Injection VulnerabilityCVE-2025-54948 · Other software · Trend Micro · reported by security@trendmicro.comExploitedCritical 9.4
Trend Micro Apex One Management Console (on-premise) contains an OS command injection vulnerability that could allow a pre-authenticated remote attacker to upload malicious code and execute commands on affected installations.
- Product
- Apex One
- On CISA’s list since
- Aug 18, 2025 (federal fix deadline Sep 8, 2025)
- What to do
- Attackers are using this now. Install Trend Micro’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 catalogsuccess.trendmicro.comcisa.gov
Sep 21, 2023Trend Micro Apex One and Worry-Free Business Security Remote Code Execution VulnerabilityCVE-2023-41179 · Other software · Trend Micro · reported by security@trendmicro.comExploitedHigh 7.2
Trend Micro Apex One and Worry-Free Business Security contain an unspecified vulnerability in the third-party anti-virus uninstaller that could allow an attacker to manipulate the module to conduct remote code execution. An attacker must first obtain administrative console access on the target system in order to exploit this vulnerability.
- Product
- Apex One and Worry-Free Business Security
- On CISA’s list since
- Sep 21, 2023 (federal fix deadline Oct 12, 2023)
- What to do
- Attackers are using this now. Install Trend Micro’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 catalogjvn.jpsuccess.trendmicro.com
Sep 15, 2022Trend Micro Apex One and Apex One as a Service Improper Validation VulnerabilityCVE-2022-40139 · Other software · Trend Micro · reported by security@trendmicro.comExploitedHigh 7.2
Trend Micro Apex One and Apex One as a Service contain an improper validation of rollback mechanism components that could lead to remote code execution.
- Product
- Apex One and Apex One as a Service
- On CISA’s list since
- Sep 15, 2022 (federal fix deadline Oct 6, 2022)
- What to do
- Attackers are using this now. Install Trend Micro’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 catalogsuccess.trendmicro.comsuccess.trendmicro.com
Nov 3, 2021Trend Micro Apex One and OfficeScan Remote Code Execution VulnerabilityCVE-2020-8467 · Other software · Trend Micro · reported by security@trendmicro.comExploitedHigh 8.8
Trend Micro Apex One and OfficeScan contain an unspecified vulnerability within a migration tool component that allows for remote code execution.
- Product
- Apex One and OfficeScan
- On CISA’s list since
- Nov 3, 2021 (federal fix deadline May 3, 2022)
- What to do
- Attackers are using this now. Install Trend Micro’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 catalogsuccess.trendmicro.comsuccess.trendmicro.com
Nov 3, 2021Trend Micro Apex One and OfficeScan Authentication Bypass VulnerabilityCVE-2020-8599 · Other software · Trend Micro · reported by security@trendmicro.comExploitedCritical 9.8
Trend Micro Apex One and OfficeScan server contain a vulnerable EXE file that could allow a remote attacker to write data to a path on affected installations and bypass root login.
- Product
- Apex One and OfficeScan
- On CISA’s list since
- Nov 3, 2021 (federal fix deadline May 3, 2022)
- What to do
- Attackers are using this now. Install Trend Micro’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 catalogsuccess.trendmicro.comsuccess.trendmicro.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.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.