{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-21155 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-21155 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-21155 is a high-severity denial of service vulnerability in Fernhill SCADA Server , published on 12 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-21155 and fix it if it is affected.\n\nWhat it is: CVE-2022-21155 is a high-severity denial of service vulnerability in Fernhill SCADA Server , published on 12 Apr 2022. 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-2022-21155 in the wild and no public exploit code.\n\nAffected product: Fernhill SCADA Server . 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-2022-21155/ (Markdown: https://insights.sbomify.com/CVE-2022-21155/index.md)","id":"CVE-2022-21155","markdown":"https://insights.sbomify.com/CVE-2022-21155/index.md","name":"CVE-2022-21155","record":{"aliases":["GHSA-983v-fgvf-4jjc"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SCADA Server","requires_auth":"none","summary":"A specially crafted packet can cause the Fernhill SCADA Server process to exit, resulting in a denial of service for industrial control systems.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"scada_server","vendor":"fernhillsoftware"}],"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-755","name":"Improper Handling of Exceptional Conditions"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.","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":"Fernhill SCADA Uncontrolled Resource Consumption","id":"CVE-2022-21155","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":"Null dereference in Intel(R) Trace Analyzer and Collector","id":"CVE-2022-21156"},"packages":[],"prev":{"headline":"Integer overflow in Leadtools","id":"CVE-2022-21154"},"products":["SCADA Server "],"published":"2022-04-12","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-16","vendors":["Fernhill"]},"summary":"A specially crafted packet can cause the Fernhill SCADA Server process to exit, resulting in a denial of service for industrial control systems.","url":"https://insights.sbomify.com/CVE-2022-21155/"}