{"cve":{"cve_id":"CVE-2026-52931","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\nbatman-adv: tp_meter: avoid use of uninit sender vars\n\nbatadv_tp_recv_ack() and batadv_tp_stop() are only valid for tp_vars in the\nBATADV_TP_SENDER role. When called with a BATADV_TP_RECEIVER role, it\nproceeds to read sender-only members that were never initialized, leading\nto undefined behavior.\n\nThis can be triggered when a node that is currently acting as a receiver in\nan ongoing tp_meter session receives a malicious ACK packet.\n\nGuard against this by checking tp_vars->role immediately after the\nlookup and bailing out if it is not BATADV_TP_SENDER, before any of\nthose members are accessed.","published_at":"2026-06-24T07:14:23.349000Z","last_modified_at":null,"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":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://git.kernel.org/stable/c/0e388af04b3958b178a1b979527f93eb46ea1fee","https://git.kernel.org/stable/c/1a21c055f66e78973712a4a1be2a554f1ee2e4f4","https://git.kernel.org/stable/c/9884c9c02d3c90e9215db3c5128f59045d20ae91","https://git.kernel.org/stable/c/53f931e0146ae5bdab4cba302646827d06b3794b","https://git.kernel.org/stable/c/ecdaa3e4d91040206afe21bc8a0d1198a0971ff3","https://git.kernel.org/stable/c/dc2ae5fbd2dadc26735092f140b246841d969a11","https://git.kernel.org/stable/c/85397e48afe6be83ffca5ad3f4792296bfc81d3d","https://git.kernel.org/stable/c/6c65cf23d4c6170fcf5714c32aa64689718cb142"],"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":"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":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"0e388af04b3958b178a1b979527f93eb46ea1fee","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:0e388af04b3958b178a1b979527f93eb46ea1fee"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"1a21c055f66e78973712a4a1be2a554f1ee2e4f4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:1a21c055f66e78973712a4a1be2a554f1ee2e4f4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"9884c9c02d3c90e9215db3c5128f59045d20ae91","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:9884c9c02d3c90e9215db3c5128f59045d20ae91"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"53f931e0146ae5bdab4cba302646827d06b3794b","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:53f931e0146ae5bdab4cba302646827d06b3794b"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"ecdaa3e4d91040206afe21bc8a0d1198a0971ff3","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:ecdaa3e4d91040206afe21bc8a0d1198a0971ff3"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"dc2ae5fbd2dadc26735092f140b246841d969a11","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:dc2ae5fbd2dadc26735092f140b246841d969a11"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"85397e48afe6be83ffca5ad3f4792296bfc81d3d","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:85397e48afe6be83ffca5ad3f4792296bfc81d3d"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"33a3bb4a3345bb511f9c69c913da95d4693e2a4e","version_start_inclusive":true,"version_end":"6c65cf23d4c6170fcf5714c32aa64689718cb142","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:33a3bb4a3345bb511f9c69c913da95d4693e2a4e:6c65cf23d4c6170fcf5714c32aa64689718cb142"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"4.8","version_start_inclusive":true,"version_end":"4.8","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:4.8:4.8"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"4.8","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:4.8"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.10.258","version_start_inclusive":true,"version_end":"5.10.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.10.258:5.10.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"5.15.209","version_start_inclusive":true,"version_end":"5.15.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:5.15.209:5.15.*"},{"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":"6.6.142","version_start_inclusive":true,"version_end":"6.6.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.6.142:6.6.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.92","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.92:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.34","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.34:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.11","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.11:7.0.*"},{"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/0e388af04b3958b178a1b979527f93eb46ea1fee","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/1a21c055f66e78973712a4a1be2a554f1ee2e4f4","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/9884c9c02d3c90e9215db3c5128f59045d20ae91","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/53f931e0146ae5bdab4cba302646827d06b3794b","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/ecdaa3e4d91040206afe21bc8a0d1198a0971ff3","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/dc2ae5fbd2dadc26735092f140b246841d969a11","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/85397e48afe6be83ffca5ad3f4792296bfc81d3d","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/6c65cf23d4c6170fcf5714c32aa64689718cb142","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-24T07:14:23.349000Z","label":"CVE published","source":null}]}