{"cve":{"cve_id":"CVE-2021-47168","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0076,"epss_percentile":0.52273,"epss_as_of":"2026-08-28","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: fix an incorrect limit in filelayout_decode_layout()\n\nThe \"sizeof(struct nfs_fh)\" is two bytes too large and could lead to\nmemory corruption.  It should be NFS_MAXFHSIZE because that's the size\nof the ->data[] buffer.\n\nI reversed the size of the arguments to put the variable on the left.","published_at":"2024-03-25T09:16:20.778000Z","last_modified_at":"2026-08-04T10:16:50.143000Z","cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"partial","cwes":["CWE-787"],"nvd_references":["https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040","https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1","https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714","https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a","https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1","https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e","https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84","https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-08-05T01:36:36.112582Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"f299522eda1566cbfbae4b15c82970fc41b03714","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:f299522eda1566cbfbae4b15c82970fc41b03714"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"945ebef997227ca8c20bad7f8a8358c8ee57a84a","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:945ebef997227ca8c20bad7f8a8358c8ee57a84a"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"e411df81cd862ef3d5b878120b2a2fef0ca9cdb1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:e411df81cd862ef3d5b878120b2a2fef0ca9cdb1"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"9b367fe770b1b80d7bf64ed0d177544a44405f6e","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:9b367fe770b1b80d7bf64ed0d177544a44405f6e"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"d34fb628f6ef522f996205a9e578216bbee09e84","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:d34fb628f6ef522f996205a9e578216bbee09e84"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"16b374ca439fb406e46e071f75428f5b033056f8","version_start_inclusive":true,"version_end":"769b01ea68b6c49dc3cde6adf7e53927dacbd3a8","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:16b374ca439fb406e46e071f75428f5b033056f8:769b01ea68b6c49dc3cde6adf7e53927dacbd3a8"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"2.6.37","version_start_inclusive":true,"version_end":"2.6.37","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:2.6.37:2.6.37"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"2.6.37","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:2.6.37"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"4.4.271","version_start_inclusive":true,"version_end":"4.4.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.4.271:4.4.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"4.9.271","version_start_inclusive":true,"version_end":"4.9.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.9.271:4.9.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"4.14.235","version_start_inclusive":true,"version_end":"4.14.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.14.235:4.14.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"4.19.193","version_start_inclusive":true,"version_end":"4.19.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.19.193:4.19.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"5.4.124","version_start_inclusive":true,"version_end":"5.4.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.4.124:5.4.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.42","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.42:5.10.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"5.12.9","version_start_inclusive":true,"version_end":"5.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.12.9:5.12.*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux","product_name":"Linux","version_start":"5.13","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.13:*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux-kernel","product_name":"linux_kernel","version_start":"2.6.37","version_start_inclusive":true,"version_end":"4.4.271","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux-kernel","product_name":"linux_kernel","version_start":"5.13","version_start_inclusive":true,"version_end":"5.13","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux-kernel","product_name":"linux_kernel","version_start":"5.13","version_start_inclusive":true,"version_end":"5.13","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*"},{"vendor_slug":"linux","vendor_name":"linux","product_slug":"linux-kernel","product_name":"linux_kernel","version_start":"5.13","version_start_inclusive":true,"version_end":"5.13","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2024-03-25T09:16:20.778000Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-06-24T00:31:49.653458Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:49.653458Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:49.653458Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-08-04T10:18:26.048314Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-08-04T10:18:26.048314Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-08-04T10:18:26.048314Z","label":"CVSS score revised","source":"vulnrichment"}]}