{"cve":{"cve_id":"CVE-2026-52981","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":null,"epss_percentile":null,"epss_as_of":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nneigh: let neigh_xmit take skb ownership\n\nneigh_xmit always releases the skb, except when no neighbour table is\nfound. But even the first added user of neigh_xmit (mpls) relied on\nneigh_xmit to release the skb (or queue it for tx).\n\nsashiko reported:\n If neigh_xmit() is called with an uninitialized neighbor table (for\n example, NEIGH_ND_TABLE when IPv6 is disabled), it returns -EAFNOSUPPORT\n and bypasses its internal out_kfree_skb error path.  Because the return\n value of neigh_xmit() is ignored here, does this leak the SKB?\n\nAssume full ownership and remove the last code path that doesn't\nxmit or free skb.","published_at":"2026-06-24T16:28:57.074000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/8a89054a1ec0767aec25ed2bbac933da6ba3cf5a","https://git.kernel.org/stable/c/9247d59ca15bf60a57dca08103f055d8a4340877","https://git.kernel.org/stable/c/0084712e0bee204b284510cdb63182fd5a30c2b7","https://git.kernel.org/stable/c/63063ba60d2dc334e34f1e3f9271d7f3f6f30307","https://git.kernel.org/stable/c/445e45a2c3a078316a62d2d331a570cf34ef5079","https://git.kernel.org/stable/c/4438113be604ee67a7bf4f81da6e1cca41332ce4"],"vuln_status":null,"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":"2026-06-28T17:55:22.518073Z","updated_at":"2026-06-28T23:30:49.890169Z"},"effective_severity":"HIGH","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":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"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":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","version_start_inclusive":true,"version_end":"8a89054a1ec0767aec25ed2bbac933da6ba3cf5a","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62:8a89054a1ec0767aec25ed2bbac933da6ba3cf5a"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","version_start_inclusive":true,"version_end":"9247d59ca15bf60a57dca08103f055d8a4340877","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62:9247d59ca15bf60a57dca08103f055d8a4340877"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","version_start_inclusive":true,"version_end":"0084712e0bee204b284510cdb63182fd5a30c2b7","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62:0084712e0bee204b284510cdb63182fd5a30c2b7"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","version_start_inclusive":true,"version_end":"63063ba60d2dc334e34f1e3f9271d7f3f6f30307","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62:63063ba60d2dc334e34f1e3f9271d7f3f6f30307"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","version_start_inclusive":true,"version_end":"445e45a2c3a078316a62d2d331a570cf34ef5079","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62:445e45a2c3a078316a62d2d331a570cf34ef5079"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62","version_start_inclusive":true,"version_end":"4438113be604ee67a7bf4f81da6e1cca41332ce4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:4fd3d7d9e868ffbdb0e7a67c5c8e9dfdcd846a62:4438113be604ee67a7bf4f81da6e1cca41332ce4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.1","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.1:4.1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"4.1","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:4.1"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.1.175","version_start_inclusive":true,"version_end":"6.1.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.1.175:6.1.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.6.141","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.141:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.91","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.91:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.33","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.33:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.10","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.10:7.0.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.1","version_start_inclusive":true,"version_end":"*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.1:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://git.kernel.org/stable/c/8a89054a1ec0767aec25ed2bbac933da6ba3cf5a","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/9247d59ca15bf60a57dca08103f055d8a4340877","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/0084712e0bee204b284510cdb63182fd5a30c2b7","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/63063ba60d2dc334e34f1e3f9271d7f3f6f30307","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/445e45a2c3a078316a62d2d331a570cf34ef5079","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/4438113be604ee67a7bf4f81da6e1cca41332ce4","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T16:28:57.074000Z","label":"CVE published","source":null}]}