{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-22308 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-22308 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-22308 is a high-severity vulnerability in SoftEther VPN, published on 12 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-22308 and fix it if it is affected.\n\nWhat it is: CVE-2023-22308 is a high-severity vulnerability in SoftEther VPN, published on 12 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-22308 in the wild and no public exploit code.\n\nAffected product: SoftEther VPN. 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-2023-22308/ (Markdown: https://insights.sbomify.com/CVE-2023-22308/index.md)","id":"CVE-2023-22308","markdown":"https://insights.sbomify.com/CVE-2023-22308/index.md","name":"CVE-2023-22308","record":{"aliases":["GHSA-8x86-h5jc-fg6v"],"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 attacker can cause a denial of service in SoftEther VPN by sending a specially crafted network packet that triggers an integer underflow.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"vpn","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-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Integer overflow in SoftEther VPN","id":"CVE-2023-22308","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Reflected Cross Site Scripting (XSS)","id":"CVE-2023-22309"},"packages":[],"prev":{"headline":"Site-Passwords in GET parameters","id":"CVE-2023-22307"},"products":["SoftEther VPN"],"published":"2023-10-12","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-25565","kev_date_added":null,"published":"2025-03-12"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-25567","kev_date_added":null,"published":"2025-03-12"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2025-25568","kev_date_added":null,"published":"2025-03-12"},{"cvss_score":9,"headline":"Memory corruption in SoftEther VPN","id":"CVE-2023-27395","kev_date_added":null,"published":"2023-10-12"},{"cvss_score":7.8,"headline":"Auth bypass in SoftEther VPN","id":"CVE-2023-32634","kev_date_added":null,"published":"2023-10-12"},{"cvss_score":7.5,"headline":"Denial of service in SoftEther VPN","id":"CVE-2023-23581","kev_date_added":null,"published":"2023-10-12"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-02","vendors":["SoftEther VPN"]},"summary":"An attacker can cause a denial of service in SoftEther VPN by sending a specially crafted network packet that triggers an integer underflow.","url":"https://insights.sbomify.com/CVE-2023-22308/"}