{"answers":{"affected":"It affects 11 products.","exploited":"There is no known exploitation of CVE-2020-28393 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-28393 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-28393 is a high-severity denial of service vulnerability in SCALANCE XM-400, XR-500, published on 12 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28393 and fix it if it is affected.\n\nWhat it is: CVE-2020-28393 is a high-severity denial of service vulnerability in SCALANCE XM-400, XR-500, published on 12 May 2021. 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-2020-28393 in the wild and no public exploit code.\n\nAffected product: SCALANCE XM-400, XR-500. 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-2020-28393/ (Markdown: https://insights.sbomify.com/CVE-2020-28393/index.md)","id":"CVE-2020-28393","markdown":"https://insights.sbomify.com/CVE-2020-28393/index.md","name":"CVE-2020-28393","record":{"aliases":["GHSA-q5c9-w6w2-m4fw"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Industrial network switch","requires_auth":"none","summary":"Unauthenticated attackers can cause permanent denial of service on Siemens SCALANCE switches via crafted OSPF packets if OSPF is enabled.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"scalance_xm-400_firmware","vendor":"siemens"},{"product":"scalance_xm408-4c_firmware","vendor":"siemens"},{"product":"scalance_xm408-4c_l3_firmware","vendor":"siemens"},{"product":"scalance_xm408-8c_firmware","vendor":"siemens"},{"product":"scalance_xm408-8c_l3_firmware","vendor":"siemens"},{"product":"scalance_xm416-4c_firmware","vendor":"siemens"},{"product":"scalance_xm416-4c_l3_firmware","vendor":"siemens"},{"product":"scalance_xr524_firmware","vendor":"siemens"},{"product":"scalance_xr526_firmware","vendor":"siemens"},{"product":"scalance_xr528_firmware","vendor":"siemens"},{"product":"scalance_xr552_firmware","vendor":"siemens"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-682","name":"Incorrect Calculation"}],"description":"An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device on the SCALANCE XM-400, XR-500 (All versions prior to v6.4).","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":"Denial of service in SCALANCE XM-400, XR-500","id":"CVE-2020-28393","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in JT2Go","id":"CVE-2020-28394"},"packages":[],"prev":{"headline":"Misconfiguration in SIMARIS configuration","id":"CVE-2020-28392"},"products":["SCALANCE XM-400, XR-500"],"published":"2021-05-12","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Unauthenticated attackers can cause permanent denial of service on Siemens SCALANCE switches via crafted OSPF packets if OSPF is enabled.","url":"https://insights.sbomify.com/CVE-2020-28393/"}