{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-22925 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-22925 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-22925 is a high-severity denial of service vulnerability in Siemens SIMATIC CN 4100, published on 12 May 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-2026-22925 and fix it if it is affected.\n\nWhat it is: CVE-2026-22925 is a high-severity denial of service vulnerability in Siemens SIMATIC CN 4100, published on 12 May 2026. 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-2026-22925 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC CN 4100. 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-2026-22925/ (Markdown: https://insights.sbomify.com/CVE-2026-22925/index.md)","id":"CVE-2026-22925","markdown":"https://insights.sbomify.com/CVE-2026-22925/index.md","name":"CVE-2026-22925","record":{"aliases":["GHSA-45ff-x9p5-mq3g"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Industrial Network Device","requires_auth":"none","summary":"An attacker can cause denial of service on SIMATIC CN 4100 devices by overwhelming system resources with high-volume TCP SYN packets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"simatic_cn_4100_firmware","vendor":"siemens"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets\r\nThis could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.","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 SIMATIC CN 4100","id":"CVE-2026-22925","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":"Path traversal in Omnissa Workspace ONE® Assist for macOS","id":"CVE-2026-22926"},"packages":[],"prev":{"headline":"Missing authorization in SIMATIC CN 4100","id":"CVE-2026-22924"},"products":["SIMATIC CN 4100"],"published":"2026-05-12","related":[{"cvss_score":10,"headline":"Hardcoded credentials in SIMATIC CN 4100","id":"CVE-2024-32741","kev_date_added":null,"published":"2024-05-14"},{"cvss_score":9.9,"headline":"Privilege escalation in SIMATIC CN 4100","id":"CVE-2023-29130","kev_date_added":null,"published":"2023-07-11"},{"cvss_score":9.8,"headline":"Hardcoded credentials in SIMATIC CN 4100","id":"CVE-2024-32740","kev_date_added":null,"published":"2024-05-14"},{"cvss_score":9.8,"headline":"Hardcoded credentials in SIMATIC CN 4100","id":"CVE-2023-49621","kev_date_added":null,"published":"2024-01-09"},{"cvss_score":9.2,"headline":"Hardcoded credentials in SIMATIC CN 4100","id":"CVE-2025-40938","kev_date_added":null,"published":"2025-12-09"},{"cvss_score":8.8,"headline":"Missing authorization in SIMATIC CN 4100","id":"CVE-2026-22924","kev_date_added":null,"published":"2026-05-12"},{"cvss_score":8.8,"headline":"Auth bypass in SIMATIC CN 4100","id":"CVE-2023-49251","kev_date_added":null,"published":"2024-01-09"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-12","vendors":["Siemens"]},"summary":"An attacker can cause denial of service on SIMATIC CN 4100 devices by overwhelming system resources with high-volume TCP SYN packets.","url":"https://insights.sbomify.com/CVE-2026-22925/"}