{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-40566 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-40566 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-40566 is a high-severity vulnerability in Siemens SIMATIC PCS neo V4.1, published on 13 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-40566 and fix it if it is affected.\n\nWhat it is: CVE-2025-40566 is a high-severity vulnerability in Siemens SIMATIC PCS neo V4.1, published on 13 May 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-40566 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC PCS neo V4.1. 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-2025-40566/ (Markdown: https://insights.sbomify.com/CVE-2025-40566/index.md)","id":"CVE-2025-40566","markdown":"https://insights.sbomify.com/CVE-2025-40566/index.md","name":"CVE-2025-40566","record":{"aliases":["GHSA-wmm5-59wm-x34p"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Industrial control system","requires_auth":"none","summary":"Attackers can reuse session tokens after logout to hijack legitimate user sessions in Siemens SIMATIC PCS neo.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"simatic_pcs_neo","vendor":"siemens"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions \u003c V4.1 Update 3), SIMATIC PCS neo V5.0 (All versions \u003c V5.0 Update 1). Affected products do not correctly invalidate user sessions upon user logout. This could allow a remote unauthenticated attacker, who has obtained the session token by other means, to re-use a legitimate user's session even after logout.","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":"Security feature bypass in SIMATIC PCS neo V4.1","id":"CVE-2025-40566","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in RUGGEDCOM RST2428P","id":"CVE-2025-40567"},"packages":[],"prev":{"headline":"Denial of service in BACnet ATEC 550-440","id":"CVE-2025-40556"},"products":["SIMATIC PCS neo V4.1","SIMATIC PCS neo V5.0"],"published":"2025-05-13","related":[{"cvss_score":9.3,"headline":"Memory corruption in SIMATIC PCS neo V4.1","id":"CVE-2025-40795","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":8.7,"headline":"Memory corruption in SIMATIC PCS neo V4.1","id":"CVE-2025-40796","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":8.7,"headline":"Denial of service in SIMATIC PCS neo V4.1","id":"CVE-2025-40797","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":8.7,"headline":"Memory corruption in SIMATIC PCS neo V4.1","id":"CVE-2025-40798","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":8.7,"headline":"Memory corruption in SIMATIC PCS neo V4.1","id":"CVE-2025-30175","kev_date_added":null,"published":"2025-05-13"},{"cvss_score":8.7,"headline":"Memory corruption in SIMATIC PCS neo V4.1","id":"CVE-2025-30176","kev_date_added":null,"published":"2025-05-13"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-05-13","vendors":["Siemens"]},"summary":"Attackers can reuse session tokens after logout to hijack legitimate user sessions in Siemens SIMATIC PCS neo.","url":"https://insights.sbomify.com/CVE-2025-40566/"}