{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-27663 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-27663 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-27663 is a high-severity denial of service vulnerability in Siemens CPCI85 Central Processing/Communication, published on 26 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-27663 and fix it if it is affected.\n\nWhat it is: CVE-2026-27663 is a high-severity denial of service vulnerability in Siemens CPCI85 Central Processing/Communication, published on 26 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-27663 in the wild and no public exploit code.\n\nAffected product: Siemens CPCI85 Central Processing/Communication. 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-2026-27663/ (Markdown: https://insights.sbomify.com/CVE-2026-27663/index.md)","id":"CVE-2026-27663","markdown":"https://insights.sbomify.com/CVE-2026-27663/index.md","name":"CVE-2026-27663","record":{"aliases":["GHSA-j3fp-8j72-vf4g"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Siemens RTU/CPCI","requires_auth":"none","summary":"Remote attackers can cause denial of service in Siemens CPCI85 and RTUM85 devices by exhausting resources with high-volume requests, requiring a reboot.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/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 CPCI85 Central Processing/Communication (All versions \u003c V26.10), RTUM85 RTU Base (All versions \u003c V26.10). The affected application contains denial-of-service (DoS) vulnerability. The remote operation mode is susceptible to a resource exhaustion condition when subjected to a high volume of requests. Sending multiple requests can exhaust resources, preventing parameterization and requiring a reset or reboot to restore functionality.","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 CPCI85 Central Processing/Communication","id":"CVE-2026-27663","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":"Memory corruption in CPCI85 Central Processing/Communication","id":"CVE-2026-27664"},"packages":[],"prev":{"headline":"Missing authorization in SIMATIC HMI MTP1000 Unified Comfort Panel","id":"CVE-2026-27662"},"products":["CPCI85 Central Processing/Communication","RTUM85 RTU Base"],"published":"2026-03-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-14","vendors":["Siemens"]},"summary":"Remote attackers can cause denial of service in Siemens CPCI85 and RTUM85 devices by exhausting resources with high-volume requests, requiring a reboot.","url":"https://insights.sbomify.com/CVE-2026-27663/"}