{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40075 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40075 is a high-severity vulnerability in Linux, published on 28 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-40075 and fix it if it is affected.\n\nWhat it is: CVE-2025-40075 is a high-severity vulnerability in Linux, published on 28 Oct 2025. 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-2025-40075 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-2025-40075/ (Markdown: https://insights.sbomify.com/CVE-2025-40075/index.md)","id":"CVE-2025-40075","markdown":"https://insights.sbomify.com/CVE-2025-40075/index.md","name":"CVE-2025-40075","record":{"aliases":["AZL-68927","BELL-CVE-2025-40075","DEBIAN-CVE-2025-40075","GHSA-447q-wwcf-54f8","ROOT-OS-DEBIAN-11-CVE-2025-40075","ROOT-OS-DEBIAN-12-CVE-2025-40075","ROOT-OS-DEBIAN-13-CVE-2025-40075","ROOT-OS-UBUNTU-2204-CVE-2025-40075","ROOT-OS-UBUNTU-2404-CVE-2025-40075","UBUNTU-CVE-2025-40075"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A null pointer dereference in the Linux kernel TCP metrics subsystem can cause a system crash, requiring a kernel patch.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/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\ntcp_metrics: use dst_dev_net_rcu()\n\nReplace three dst_dev() with a lockdep enabled helper.","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":"tcp_metrics: use dst_dev_net_rcu()","id":"CVE-2025-40075","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"PCI: rcar-host: Pass proper IRQ domain to generic_handle_domain_irq()","id":"CVE-2025-40076"},"packages":[],"prev":{"headline":"ipv4: start using dst_dev_rcu()","id":"CVE-2025-40074"},"products":["Linux"],"published":"2025-10-28","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":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel TCP metrics subsystem can cause a system crash, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2025-40075/"}