{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-12521 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-12521 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-12521 is a medium-severity denial of service vulnerability in Phoenix Contact AXC F 1152 (1151412), published on 17 Dec 2020. 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-2020-12521 and fix it if it is affected.\n\nWhat it is: CVE-2020-12521 is a medium-severity denial of service vulnerability in Phoenix Contact AXC F 1152 (1151412), published on 17 Dec 2020. 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-2020-12521 in the wild and no public exploit code.\n\nAffected product: Phoenix Contact AXC F 1152 (1151412). 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-2020-12521/ (Markdown: https://insights.sbomify.com/CVE-2020-12521/index.md)","id":"CVE-2020-12521","markdown":"https://insights.sbomify.com/CVE-2020-12521/index.md","name":"CVE-2020-12521","record":{"aliases":["GHSA-vp46-jgwp-q8w3"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"PLCnext Control Device","requires_auth":"none","summary":"A specially crafted LLDP packet can cause high system load, leading to service failure or reboot on Phoenix Contact PLCnext Control Devices.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERTVDE","cpe":[{"product":"plcnext_firmware","vendor":"phoenixcontact"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","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-20","name":"Improper Input Validation"}],"description":"On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete 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 AXC F 1152 (1151412)","id":"CVE-2020-12521","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":"Command injection in Series PFC 100 (750-81xx/xxx-xxx)","id":"CVE-2020-12522"},"packages":[],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2020-12520"},"products":["AXC F 1152 (1151412)","AXC F 2152 (2404267)","AXC F 2152 Starterkit (1046568)","AXC F 3152 (1069208)","PLCnext Technology Starterkit (1188165)","RFC 4072S (1051328"],"published":"2020-12-17","related":[{"cvss_score":8.8,"headline":"Cross-site scripting in AXC F 1152 (1151412)","id":"CVE-2020-12517","kev_date_added":null,"published":"2020-12-17"},{"cvss_score":8.8,"headline":"Privilege escalation in AXC F 1152 (1151412)","id":"CVE-2020-12519","kev_date_added":null,"published":"2020-12-17"},{"cvss_score":5.5,"headline":"Information disclosure in AXC F 1152 (1151412)","id":"CVE-2020-12518","kev_date_added":null,"published":"2020-12-17"}],"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":"2024-09-17","vendors":["Phoenix Contact"]},"summary":"A specially crafted LLDP packet can cause high system load, leading to service failure or reboot on Phoenix Contact PLCnext Control Devices.","url":"https://insights.sbomify.com/CVE-2020-12521/"}