{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39312 exists.","fix":"No fix has been published for CVE-2026-39312 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-39312 is a high-severity denial of service vulnerability in SoftEtherVPN, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-39312 and fix it if it is affected.\n\nWhat it is: CVE-2026-39312 is a high-severity denial of service vulnerability in SoftEtherVPN, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39312 exists.\n\nAffected product: SoftEtherVPN. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-39312/ (Markdown: https://insights.sbomify.com/CVE-2026-39312/index.md)","id":"CVE-2026-39312","markdown":"https://insights.sbomify.com/CVE-2026-39312/index.md","name":"CVE-2026-39312","record":{"aliases":["GHSA-q5g3-qhc6-pr3h"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"VPN server software","requires_auth":"none","summary":"An unauthenticated remote attacker can crash the SoftEther VPN server by sending a malformed EAP-TLS packet, disrupting all active sessions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"softethervpn","vendor":"softether"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-789","name":"Memory Allocation with Excessive Size Value"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Pre-Auth EAP-TLS DoS on SoftEther VPN Developer Edition","id":"CVE-2026-39312","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"MCP-Framework: Unbounded memory allocation in readRequestBody allows denial of service via HTTP transport","id":"CVE-2026-39313"},"packages":[],"prev":{"headline":"Trilium Notes: Stored XSS Leads to Unauthorized Remote Code Execution (RCE) via Unsanitized SVG Attachments","id":"CVE-2026-39311"},"products":["SoftEtherVPN"],"published":"2026-04-07","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-07","vendors":["SoftEtherVPN"]},"summary":"An unauthenticated remote attacker can crash the SoftEther VPN server by sending a malformed EAP-TLS packet, disrupting all active sessions.","url":"https://insights.sbomify.com/CVE-2026-39312/"}