{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2022-27640 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-27640 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-27640 is a medium-severity denial of service vulnerability in Siemens SIMATIC CP 442-1 RNA, published on 10 May 2022. 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-2022-27640 and fix it if it is affected.\n\nWhat it is: CVE-2022-27640 is a medium-severity denial of service vulnerability in Siemens SIMATIC CP 442-1 RNA, published on 10 May 2022. 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-2022-27640 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC CP 442-1 RNA. 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-2022-27640/ (Markdown: https://insights.sbomify.com/CVE-2022-27640/index.md)","id":"CVE-2022-27640","markdown":"https://insights.sbomify.com/CVE-2022-27640/index.md","name":"CVE-2022-27640","record":{"aliases":["GHSA-26j8-6884-fcqw"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Siemens SIMATIC CP","requires_auth":"none","summary":"An attacker can cause a denial of service and device reboot by sending excessive ARP broadcast requests to affected Siemens SIMATIC communication processors.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"simatic_cp_442-1_rna_firmware","vendor":"siemens"},{"product":"simatic_cp_443-1_rna_firmware","vendor":"siemens"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A vulnerability has been identified in SIMATIC CP 442-1 RNA (All versions \u003c V1.5.18), SIMATIC CP 443-1 RNA (All versions \u003c V1.5.18). The affected devices improperly handles excessive ARP broadcast requests. This could allow an attacker to create a denial of service condition by performing ARP storming attacks, which can cause the device to reboot.","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 CP 442-1 RNA","id":"CVE-2022-27640","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2022"},"n_packages":0,"n_references":1,"next":{"headline":"Integer overflow in R6700v3","id":"CVE-2022-27641"},"packages":[],"prev":{"headline":"Privilege escalation in Intel(R) XMM(TM) 7560 Modem software","id":"CVE-2022-27639"},"products":["SIMATIC CP 442-1 RNA","SIMATIC CP 443-1 RNA"],"published":"2022-05-10","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":"2024-08-03","vendors":["Siemens"]},"summary":"An attacker can cause a denial of service and device reboot by sending excessive ARP broadcast requests to affected Siemens SIMATIC communication processors.","url":"https://insights.sbomify.com/CVE-2022-27640/"}