{"answers":{"affected":"It affects 73 products.","exploited":"There is no known exploitation of CVE-2023-46156 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-46156 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-46156 is a high-severity use after free vulnerability in Siemens SIMATIC Drive Controller CPU 1504D TF, published on 12 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-46156 and fix it if it is affected.\n\nWhat it is: CVE-2023-46156 is a high-severity use after free vulnerability in Siemens SIMATIC Drive Controller CPU 1504D TF, published on 12 Dec 2023. 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-2023-46156 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC Drive Controller CPU 1504D TF. 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-2023-46156/ (Markdown: https://insights.sbomify.com/CVE-2023-46156/index.md)","id":"CVE-2023-46156","markdown":"https://insights.sbomify.com/CVE-2023-46156/index.md","name":"CVE-2023-46156","record":{"aliases":["GHSA-5fwp-f47r-rg74"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Siemens SIMATIC PLC","requires_auth":"none","summary":"Attackers can cause denial of service on Siemens SIMATIC controllers by sending crafted packets to port 102, requiring a restart to recover.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"simatic_drive_controller_cpu_1504d_tf_firmware","vendor":"siemens"},{"product":"simatic_drive_controller_cpu_1507d_tf_firmware","vendor":"siemens"},{"product":"simatic_et_200sp_open_control_1515sp_pc2_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1510sp-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1510sp_f-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1511-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1511c-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1511f-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1511t-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1511tf-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1512c-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1512sp-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1512sp_f-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1513-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1513f-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1513r-1_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1514sp-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1514sp_f-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1514spt-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1514spt_f-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1515-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1515f-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1515r-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1515t-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1515tf-2_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1516-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1516f-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1516t-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1517-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1517f-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1517h-3_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1517t-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1517tf-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1518-4_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1518f-4_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1518hf-4_pn_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1518t-4_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_1518tf-4_pn\\/dp_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_s7-1518-4_pn\\/dp_odk_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_cpu_s7-1518f-4_pn\\/dp_odk_firmware","vendor":"siemens"},{"product":"simatic_s7-1500_et_200pro\\","vendor":"siemens"},{"product":"simatic_s7-1500_software_controller_firmware","vendor":"siemens"},{"product":"simatic_s7-plcsim_advanced_firmware","vendor":"siemens"},{"product":"sinumerik_mc_firmware","vendor":"siemens"},{"product":"sinumerik_one_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_1512sp_f-1_pn_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1510sp-1_pn_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1510sp-1_pn_rail_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1510sp_f-1_pn_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1510sp_f-1_pn_rail_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1512sp-1_pn_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1512sp-1_pn_rail_firmware","vendor":"siemens"},{"product":"siplus_et_200sp_cpu_1512sp_f-1_pn_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1511-1_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1511-1_pn_t1_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1511-1_pn_tx_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1511f-1_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1513-1_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1513f-1_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1515f-2_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1515f-2_pn_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1515f-2_pn_t2_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1515r-2_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1515r-2_pn_tx_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1516-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1516-3_pn\\/dp_tx_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1516f-3_pn\\/dp_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1516f-3_pn\\/dp_rail_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1517h-3_pn_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1518-4_pn\\/dp_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1518-4_pn\\/dp_mfp_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1518f-4_pn\\/dp_firmware","vendor":"siemens"},{"product":"siplus_s7-1500_cpu_1518hf-4_pn_firmware","vendor":"siemens"}],"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/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"Affected devices improperly handle specially crafted packets sent to port 102/tcp.\r\nThis could allow an attacker to create a denial of service condition. A restart is needed to restore\r\nnormal operations.","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":"Use after free in SIMATIC Drive Controller CPU 1504D TF","id":"CVE-2023-46156","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"Command injection in n/a","id":"CVE-2023-46157"},"packages":[],"prev":{"headline":"WordPress e2pdf Plugin \u003c= 1.20.18 is vulnerable to PHP Object Injection","id":"CVE-2023-46154"},"products":["SIMATIC Drive Controller CPU 1504D TF","SIMATIC Drive Controller CPU 1507D TF","SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)","SIMATIC S7-1500 CPU 1510SP F-1 PN","SIMATIC S7-1500 CPU 1510SP-1 PN","SIMATIC S7-1500 CPU 1511-1 PN","SIMATIC S7-1500 CPU 1511C-1 PN","SIMATIC S7-1500 CPU 1511F-1 PN","SIMATIC S7-1500 CPU 1511T-1 PN","SIMATIC S7-1500 CPU 1511TF-1 PN","SIMATIC S7-1500 CPU 1512C-1 PN","SIMATIC S7-1500 CPU 1512SP F-1 PN","SIMATIC S7-1500 CPU 1512SP-1 PN","SIMATIC S7-1500 CPU 1513-1 PN","SIMATIC S7-1500 CPU 1513F-1 PN","SIMATIC S7-1500 CPU 1513R-1 PN","SIMATIC S7-1500 CPU 1514SP F-2 PN","SIMATIC S7-1500 CPU 1514SP-2 PN","SIMATIC S7-1500 CPU 1514SPT F-2 PN","SIMATIC S7-1500 CPU 1514SPT-2 PN","SIMATIC S7-1500 CPU 1515-2 PN","SIMATIC S7-1500 CPU 1515F-2 PN","SIMATIC S7-1500 CPU 1515R-2 PN","SIMATIC S7-1500 CPU 1515T-2 PN","SIMATIC S7-1500 CPU 1515TF-2 PN","SIMATIC S7-1500 CPU 1516-3 PN/DP","SIMATIC S7-1500 CPU 1516F-3 PN/DP","SIMATIC S7-1500 CPU 1516T-3 PN/DP","SIMATIC S7-1500 CPU 1516TF-3 PN/DP","SIMATIC S7-1500 CPU 1517-3 PN/DP","SIMATIC S7-1500 CPU 1517F-3 PN/DP","SIMATIC S7-1500 CPU 1517H-3 PN","SIMATIC S7-1500 CPU 1517T-3 PN/DP","SIMATIC S7-1500 CPU 1517TF-3 PN/DP","SIMATIC S7-1500 CPU 1518-4 PN/DP","SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","SIMATIC S7-1500 CPU 1518F-4 PN/DP","SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","SIMATIC S7-1500 CPU 1518HF-4 PN","SIMATIC S7-1500 CPU 1518T-4 PN/DP","SIMATIC S7-1500 CPU 1518TF-4 PN/DP","SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK","SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK","SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN","SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN","SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN","SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN","SIMATIC S7-1500 Software Controller","SIMATIC S7-PLCSIM Advanced","SINUMERIK MC","SINUMERIK ONE","SIPLUS ET 200SP CPU 1510SP F-1 PN","SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL","SIPLUS ET 200SP CPU 1510SP-1 PN","SIPLUS ET 200SP CPU 1510SP-1 PN RAIL","SIPLUS ET 200SP CPU 1512SP F-1 PN","SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL","SIPLUS ET 200SP CPU 1512SP-1 PN","SIPLUS ET 200SP CPU 1512SP-1 PN RAIL","SIPLUS S7-1500 CPU 1511-1 PN","SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL","SIPLUS S7-1500 CPU 1511-1 PN TX RAIL","SIPLUS S7-1500 CPU 1511F-1 PN","SIPLUS S7-1500 CPU 1513-1 PN","SIPLUS S7-1500 CPU 1513F-1 PN","SIPLUS S7-1500 CPU 1515F-2 PN","SIPLUS S7-1500 CPU 1515F-2 PN RAIL","SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL","SIPLUS S7-1500 CPU 1515R-2 PN","SIPLUS S7-1500 CPU 1515R-2 PN TX RAIL","SIPLUS S7-1500 CPU 1516-3 PN/DP","SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL","SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL","SIPLUS S7-1500 CPU 1516F-3 PN/DP","SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL","SIPLUS S7-1500 CPU 1517H-3 PN","SIPLUS S7-1500 CPU 1518-4 PN/DP","SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","SIPLUS S7-1500 CPU 1518F-4 PN/DP","SIPLUS S7-1500 CPU 1518HF-4 PN"],"published":"2023-12-12","related":[{"cvss_score":9.3,"headline":"Weak cryptography in SIMATIC Drive Controller family","id":"CVE-2022-38465","kev_date_added":null,"published":"2022-10-11"},{"cvss_score":7.5,"headline":"Denial of service in SIMATIC Drive Controller family","id":"CVE-2021-37185","kev_date_added":null,"published":"2022-02-09"},{"cvss_score":7.5,"headline":"Denial of service in SIMATIC Drive Controller family","id":"CVE-2021-37204","kev_date_added":null,"published":"2022-02-09"},{"cvss_score":7.5,"headline":"Denial of service in SIMATIC Drive Controller family","id":"CVE-2021-37205","kev_date_added":null,"published":"2022-02-09"},{"cvss_score":4.6,"headline":"Security feature bypass in SIMATIC Drive Controller CPU 1504D TF","id":"CVE-2022-38773","kev_date_added":null,"published":"2023-01-10"}],"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":"2026-02-25","vendors":["Siemens"]},"summary":"Attackers can cause denial of service on Siemens SIMATIC controllers by sending crafted packets to port 102, requiring a restart to recover.","url":"https://insights.sbomify.com/CVE-2023-46156/"}