{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40331 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40331 is a high-severity vulnerability in Linux, published on 9 Dec 2025. 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-2025-40331 and fix it if it is affected.\n\nWhat it is: CVE-2025-40331 is a high-severity vulnerability in Linux, published on 9 Dec 2025. 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-2025-40331 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2025-40331/ (Markdown: https://insights.sbomify.com/CVE-2025-40331/index.md)","id":"CVE-2025-40331","markdown":"https://insights.sbomify.com/CVE-2025-40331/index.md","name":"CVE-2025-40331","record":{"aliases":["BELL-CVE-2025-40331","DEBIAN-CVE-2025-40331","GHSA-c4fm-qmm5-xqx8","ROOT-OS-DEBIAN-12-CVE-2025-40331","ROOT-OS-DEBIAN-13-CVE-2025-40331","ROOT-OS-UBUNTU-2204-CVE-2025-40331","ROOT-OS-UBUNTU-2404-CVE-2025-40331","UBUNTU-CVE-2025-40331"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A time-of-check to time-of-use race condition in the Linux kernel SCTP subsystem allows out-of-bounds writes, potentially leading to code execution or privilege escalation.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: Prevent TOCTOU out-of-bounds write\n\nFor the following path not holding the sock lock,\n\n  sctp_diag_dump() -\u003e sctp_for_each_endpoint() -\u003e sctp_ep_dump()\n\nmake sure not to exceed bounds in case the address list has grown\nbetween buffer allocation (time-of-check) and write (time-of-use).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"sctp: Prevent TOCTOU out-of-bounds write","id":"CVE-2025-40331","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"drm/amdkfd: Fix mmap write lock not release","id":"CVE-2025-40332"},"packages":[],"prev":{"headline":"bnxt_en: Shutdown FW DMA in bnxt_shutdown()","id":"CVE-2025-40330"},"products":["Linux"],"published":"2025-12-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A time-of-check to time-of-use race condition in the Linux kernel SCTP subsystem allows out-of-bounds writes, potentially leading to code execution or privilege escalation.","url":"https://insights.sbomify.com/CVE-2025-40331/"}