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.
5 results
Apr 7, 2026SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program.CVE-2026-39312 · Other software · SoftEtherVPN · reported by GitHubHigh 7.5
SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program. In 5.2.5188 and earlier, a pre-authentication denial-of-service vulnerability exists in SoftEther VPN Developer Edition 5.2.5188 (and likely earlier versions of Developer Edition). An unauthenticated remote attacker can crash the vpnserver process by sending a single malformed EAP-TLS packet over raw L2TP (UDP/1701), terminating all active VPN sessions.
- Product
- SoftEtherVPN
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 16, 2025SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program.CVE-2025-32787 · Other software · SoftEtherVPN · reported by GitHubLow 3.1
SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program. Versions 5.02.5184 to 5.02.5187 are vulnerable to NULL dereference in `DeleteIPv6DefaultRouterInRA` called by `StorePacket`. Before dereferencing, `DeleteIPv6DefaultRouterInRA` does not account for `ParsePacket` returning NULL, resulting in the program crashing. A patched version does not exist at this time.
- Product
- SoftEtherVPN
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 12, 2025SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function.CVE-2025-25568 · Other software · Softether · reported by MITRECritical 9.8
SoftEtherVPN 5.02.5187 is vulnerable to Use after Free in the Command.c file via the CheckNetworkAcceptThread function. NOTE: the Supplier disputes this because the use-after-free is not in the VPN software, but is instead in a separate tool that has no untrusted input and runs under the user's own privileges (it is a stress-testing tool for a networking stack).
- Product
- VPN
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfilecenter.softether-upload.comlzydry.github.io
Mar 12, 2025Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function.CVE-2025-25566 · Other software · Softether · reported by MITREMedium 5.6
Memory Leak vulnerability in SoftEtherVPN 5.02.5187 allows an attacker to cause a denial of service via the UnixMemoryAlloc function. NOTE: the Supplier disputes this because the behavior is limited to a single allocation of a few hundred bytes with a command-line tool.
- Product
- VPN
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfilecenter.softether-upload.comlzydry.github.io
Jun 26, 2024SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program.CVE-2024-38520 · Other software · SoftEtherVPN · reported by GitHubMedium 5.3
SoftEtherVPN is a an open-source cross-platform multi-protocol VPN Program. When SoftEtherVPN is deployed with L2TP enabled on a device, it introduces the possibility of the host being used for amplification/reflection traffic generation because it will respond to every packet with two response packets that are larger than the request packet size. These sorts of techniques are used by external actors who generate spoofed source IPs to target a destination on the internet. This vulnerability has been patched in version 5.02.5185.
- Product
- SoftEtherVPN
- 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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