{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-25659 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-25659 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-25659 is a high-severity denial of service vulnerability in Siemens Automation License Manager 5, published on 10 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-25659 and fix it if it is affected.\n\nWhat it is: CVE-2021-25659 is a high-severity denial of service vulnerability in Siemens Automation License Manager 5, published on 10 Aug 2021. 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-2021-25659 in the wild and no public exploit code.\n\nAffected product: Siemens Automation License Manager 5. 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-2021-25659/ (Markdown: https://insights.sbomify.com/CVE-2021-25659/index.md)","id":"CVE-2021-25659","markdown":"https://insights.sbomify.com/CVE-2021-25659/index.md","name":"CVE-2021-25659","record":{"aliases":["GHSA-qhxf-2fw5-w33w"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Siemens License Manager","requires_auth":"none","summary":"Attackers can cause denial of service by sending crafted packets to the Automation License Manager, exhausting memory and blocking legitimate users.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"automation_license_manager","vendor":"siemens"}],"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-400","name":"Uncontrolled Resource Consumption"}],"description":"A vulnerability has been identified in Automation License Manager 5 (All versions), Automation License Manager 6 (All versions \u003c V6.0 SP9 Update 2). Sending specially crafted packets to port 4410/tcp of an affected system could lead to extensive memory being consumed and as such could cause a denial-of-service preventing legitimate users from using the system.","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 Automation License Manager 5","id":"CVE-2021-25659","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in SIMATIC HMI Comfort Outdoor Panels V15 7\\\" \u0026 15\\\" (incl. SIPLUS variants)","id":"CVE-2021-25660"},"packages":[],"prev":{"headline":"Avaya IP Office Privilege Escalation Vulnerability","id":"CVE-2021-25657"},"products":["Automation License Manager 5","Automation License Manager 6"],"published":"2021-08-10","related":[{"cvss_score":9.1,"headline":"Missing authorization in n/a","id":"CVE-2016-8565","kev_date_added":null,"published":"2016-10-13"},{"cvss_score":8.8,"headline":"Path traversal in Automation License Manager 5, Automation License Manager 6","id":"CVE-2018-11455","kev_date_added":null,"published":"2018-08-07"},{"cvss_score":8.2,"headline":"Path traversal in Automation License Manager V5","id":"CVE-2022-43513","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7.8,"headline":"Missing authorization in Automation License Manager 5","id":"CVE-2020-7583","kev_date_added":null,"published":"2020-08-14"},{"cvss_score":7.7,"headline":"Path traversal in Automation License Manager V5","id":"CVE-2022-43514","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2016-8563","kev_date_added":null,"published":"2016-10-13"}],"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":"Attackers can cause denial of service by sending crafted packets to the Automation License Manager, exhausting memory and blocking legitimate users.","url":"https://insights.sbomify.com/CVE-2021-25659/"}