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.
18 results
Nov 6, 2025CLUSTERPRO X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 and EXPRESSCLUSTER X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, CLUSTERPRO X SingleServerSafe for Linux 4CVE-2025-11546 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.3
CLUSTERPRO X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 and EXPRESSCLUSTER X for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, CLUSTERPRO X SingleServerSafe for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2, EXPRESSCLUSTER X SingleServerSafe for Linux 4.0, 4.1, 4.2, 5.0, 5.1 and 5.2 allows an attacker sends specially crafted network packets to the product, arbitrary OS commands may be executed without authentication.
- Product
- CLUSTERPRO X for Linux (EXPRESSCLUSTER X for Linux)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 17, 2023CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and eCVE-2023-39548 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 8.8
CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.
- Product
- CLUSTERPRO X (EXPRESSCLUSTER X)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 17, 2023CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and eCVE-2023-39547 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 8.8
CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.
- Product
- CLUSTERPRO X (EXPRESSCLUSTER X)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 17, 2023CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and eCVE-2023-39546 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 8.8
CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.
- Product
- CLUSTERPRO X (EXPRESSCLUSTER X)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 17, 2023CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and eCVE-2023-39545 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 8.8
CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.
- Product
- CLUSTERPRO X (EXPRESSCLUSTER X)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 17, 2023CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and eCVE-2023-39544 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 8.8
CLUSTERPRO X Ver5.1 and earlier and EXPRESSCLUSTER X 5.1 and earlier, CLUSTERPRO X SingleServerSafe 5.1 and earlier, EXPRESSCLUSTER X SingleServerSafe 5.1 and earlier allows a attacker to log in to the product may execute an arbitrary command.
- Product
- CLUSTERPRO X(EXPRESSCLUSTER X)
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 8, 2022Uncontrolled Search Path Element in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe foCVE-2022-34825 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Uncontrolled Search Path Element in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 5.0 SingleServerSafe for Windows and earlier allows a remote unauthenticated attacker to overwrite existing files on the file system and to potentially execute arbitrary code.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 8, 2022Weak File and Folder Permissions vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SinglCVE-2022-34824 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Weak File and Folder Permissions vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 5.0 SingleServerSafe for Windows and earlier allows a remote unauthenticated attacker to overwrite existing files on the file system and to potentially execute arbitrary code.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 8, 2022Buffer overflow vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for WCVE-2022-34823 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Buffer overflow vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 5.0 SingleServerSafe for Windows and earlier allows a remote unauthenticated attacker to overwrite existing files on the file system and to potentially execute arbitrary code.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 8, 2022Path traversal vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for WiCVE-2022-34822 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Path traversal vulnerability in CLUSTERPRO X 5.0 for Windows and earlier, EXPRESSCLUSTER X 5.0 for Windows and earlier, CLUSTERPRO X 5.0 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 5.0 SingleServerSafe for Windows and earlier allows a remote unauthenticated attacker to overwrite existing files on the file system and to potentially execute arbitrary code.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Improper input validation vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTECVE-2021-20707 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 7.5
Improper input validation vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to read files upload via network..
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4CVE-2021-20706 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 7.5
Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4CVE-2021-20705 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comHigh 7.5
Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Buffer overflow vulnerability in the compatible API with previous versions CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlieCVE-2021-20704 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Buffer overflow vulnerability in the compatible API with previous versions CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3CVE-2021-20703 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3CVE-2021-20702 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleSCVE-2021-20701 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.com
Nov 2, 2021Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleSCVE-2021-20700 · Other software · NEC Corporation · reported by psirt-info@cyber.jp.nec.comCritical 9.8
Buffer overflow vulnerability in the Disk Agent CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
- Product
- CLUSTERPRO X
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordjpn.nec.comjpn.nec.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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