{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40264 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40264 is a vulnerability in Linux, published on 4 Dec 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-2025-40264 and fix it if it is affected.\n\nWhat it is: CVE-2025-40264 is a vulnerability in Linux, published on 4 Dec 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-2025-40264 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-2025-40264/ (Markdown: https://insights.sbomify.com/CVE-2025-40264/index.md)","id":"CVE-2025-40264","markdown":"https://insights.sbomify.com/CVE-2025-40264/index.md","name":"CVE-2025-40264","record":{"aliases":["AZL-71404","BELL-CVE-2025-40264","DEBIAN-CVE-2025-40264","GHSA-gvxj-xj5w-j8qf","ROOT-OS-DEBIAN-11-CVE-2025-40264","ROOT-OS-DEBIAN-12-CVE-2025-40264","ROOT-OS-DEBIAN-13-CVE-2025-40264","ROOT-OS-UBUNTU-2204-CVE-2025-40264","ROOT-OS-UBUNTU-2404-CVE-2025-40264","UBUNTU-CVE-2025-40264"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A NULL pointer dereference in the be2net driver can cause a system crash when sending packets to the BMC.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: pass wrb_params in case of OS2BMC\n\nbe_insert_vlan_in_pkt() is called with the wrb_params argument being NULL\nat be_send_pkt_to_bmc() call site.  This may lead to dereferencing a NULL\npointer when processing a workaround for specific packet, as commit\nbc0c3405abbb (\"be2net: fix a Tx stall bug caused by a specific ipv6\npacket\") states.\n\nThe correct way would be to pass the wrb_params from be_xmit().","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":"be2net: pass wrb_params in case of OS2BMC","id":"CVE-2025-40264","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"vfat: fix missing sb_min_blocksize() return value checks","id":"CVE-2025-40265"},"packages":[],"prev":{"headline":"Input: cros_ec_keyb - fix an invalid memory access","id":"CVE-2025-40263"},"products":["Linux"],"published":"2025-12-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-06-02","vendors":["Linux"]},"summary":"A NULL pointer dereference in the be2net driver can cause a system crash when sending packets to the BMC.","url":"https://insights.sbomify.com/CVE-2025-40264/"}