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.
7 results
Oct 28, 2026OpenVPN ovpn-dco-win 0.6.5 through 2.8.13 allows unprivileged local users to cause a denial of service (system crash) via a race condition in the TCP connect paCVE-2026-115402 · Other software · OpenVPN · reported by security@openvpn.netMedium 5.7
OpenVPN ovpn-dco-win 0.6.5 through 2.8.13 allows unprivileged local users to cause a denial of service (system crash) via a race condition in the TCP connect path.
- Product
- ovpn-dco-win
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper synchronization in the OpenVPN ovpn-dco-win for Windows versions 0.6.5 through 1.3.5 and 2.4.0 through 2.8.7 allows local attackers to trigger a deadloCVE-2026-105390 · Other software · OpenVPN · reported by security@openvpn.netMedium 6.9
Improper synchronization in the OpenVPN ovpn-dco-win for Windows versions 0.6.5 through 1.3.5 and 2.4.0 through 2.8.7 allows local attackers to trigger a deadlock via a crafted write to the ovpn-dco device, causing the host to become unresponsive.
- Product
- ovpn-dco-win
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 7, 2026A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via craftCVE-2026-82325 · Other software · OpenVPN · reported by security@openvpn.netMedium 6.8
A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages
- Product
- ovpn-dco-win
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 10, 2026An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2.0.0 through 2.8.3 allows a remote authenticated peer to triggeCVE-2026-11604 · Other software · OpenVPN · reported by security@openvpn.netMedium 5.6
An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2.0.0 through 2.8.3 allows a remote authenticated peer to trigger a heap-based buffer overflow and kernel memory corruption via a crafted data packet, resulting in a system crash (denial of service).
- Product
- ovpn-dco-win
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcommunity.openvpn.netgithub.com
Feb 19, 2026Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too large packets to the remote peer when the AEAD tag aCVE-2026-2738 · Other software · OpenVPN · reported by security@openvpn.netMedium 5.6
Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too large packets to the remote peer when the AEAD tag appears at the end of the encrypted packet
- Product
- ovpn-dco-win
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 20, 2025Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message CVE-2025-50054 · Other software · OpenVPN · reported by security@openvpn.netMedium 5.5
Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash
- Product
- ovpn-dco-win
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordcommunity.openvpn.netcommunity.openvpn.net
Jan 15, 2025OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULCVE-2024-5198 · Other software · OpenVPN · reported by security@openvpn.netLow 3.3
OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a system halt.
- Product
- ovpn-dco
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
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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