{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-49621 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-49621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-49621 is a critical vulnerability in Siemens SIMATIC CN 4100, published on 9 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-49621 and fix it if it is affected.\n\nWhat it is: CVE-2023-49621 is a critical vulnerability in Siemens SIMATIC CN 4100, published on 9 Jan 2024. 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-2023-49621 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-2023-49621/ (Markdown: https://insights.sbomify.com/CVE-2023-49621/index.md)","id":"CVE-2023-49621","markdown":"https://insights.sbomify.com/CVE-2023-49621/index.md","name":"CVE-2023-49621","record":{"aliases":["GHSA-4hpf-94w8-jpmf"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Industrial Network Device","requires_auth":"none","summary":"An attacker can use default admin credentials during intermediate installation to gain complete control of the SIMATIC CN 4100 device.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"simatic_cn_4100_firmware","vendor":"siemens"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-1392","name":"Use of Default Credentials"}],"description":"A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V2.7). The \"intermediate installation\" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected 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":"Hardcoded credentials in SIMATIC CN 4100","id":"CVE-2023-49621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Billing Software v1.0 - Multiple Unauthenticated SQL Injections (SQLi)","id":"CVE-2023-49622"},"packages":[],"prev":{"headline":"Apache DolphinScheduler: Authenticated users could delete UDFs in resource center they were not authorized for","id":"CVE-2023-49620"},"products":["SIMATIC CN 4100"],"published":"2024-01-09","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":9.2,"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":"total"},"state":"PUBLISHED","updated":"2025-06-17","vendors":["Siemens"]},"summary":"An attacker can use default admin credentials during intermediate installation to gain complete control of the SIMATIC CN 4100 device.","url":"https://insights.sbomify.com/CVE-2023-49621/"}