{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-27253 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-27253 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-27253 is a high-severity denial of service vulnerability in FactoryTalk Linx, published on 26 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-27253 and fix it if it is affected.\n\nWhat it is: CVE-2020-27253 is a high-severity denial of service vulnerability in FactoryTalk Linx, published on 26 Nov 2020. 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-2020-27253 in the wild and no public exploit code.\n\nAffected product: FactoryTalk Linx. 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-2020-27253/ (Markdown: https://insights.sbomify.com/CVE-2020-27253/index.md)","id":"CVE-2020-27253","markdown":"https://insights.sbomify.com/CVE-2020-27253/index.md","name":"CVE-2020-27253","record":{"aliases":["GHSA-x592-jf8v-v754"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Industrial connectivity software","requires_auth":"none","summary":"A remote unauthenticated attacker can cause a denial-of-service condition in FactoryTalk Linx by sending a malicious packet.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"factorytalk_linx","vendor":"rockwellautomation"}],"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-20","name":"Improper Input Validation"}],"description":"A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to specifically craft a malicious packet resulting in a denial-of-service condition on the device.","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 FactoryTalk Linx","id":"CVE-2020-27253","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in Emerson Rosemount X-STREAM Gas Analyzer","id":"CVE-2020-27254"},"packages":[],"prev":{"headline":"Medtronic MyCareLink Smart Time-of-check Time-of-use Race Condition","id":"CVE-2020-27252"},"products":["FactoryTalk Linx"],"published":"2020-11-26","related":[{"cvss_score":9.8,"headline":"Memory corruption in FactoryTalk Linx","id":"CVE-2020-27251","kev_date_added":null,"published":"2020-11-26"},{"cvss_score":9.8,"headline":"Path traversal in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software","id":"CVE-2020-12001","kev_date_added":null,"published":"2020-06-15"},{"cvss_score":8.5,"headline":"Rockwell Automation FactoryTalk® Linx Privilege Escalation Vulnerabilities","id":"CVE-2025-9067","kev_date_added":null,"published":"2025-10-14"},{"cvss_score":8.5,"headline":"Rockwell Automation FactoryTalk® Linx Privilege Escalation Vulnerabilities","id":"CVE-2025-9068","kev_date_added":null,"published":"2025-10-14"},{"cvss_score":8.4,"headline":"Rockwell Automation FactoryTalk® Linx Network Browser Security Bypass Vulnerability","id":"CVE-2025-7972","kev_date_added":null,"published":"2025-08-14"},{"cvss_score":8.2,"headline":"Rockwell Automation FactoryTalk Linx Vulnerable to Denial-of-Service and Information Disclosure","id":"CVE-2023-29464","kev_date_added":null,"published":"2023-10-13"},{"cvss_score":8.1,"headline":"Code injection in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software","id":"CVE-2020-11999","kev_date_added":null,"published":"2020-06-15"}],"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":"A remote unauthenticated attacker can cause a denial-of-service condition in FactoryTalk Linx by sending a malicious packet.","url":"https://insights.sbomify.com/CVE-2020-27253/"}