{"cve":{"cve_id":"CVE-2026-53241","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\nALSA: seq: dummy: fix UMP event stack overread\n\nThe dummy sequencer port forwards events by copying an incoming\nstruct snd_seq_event into a stack temporary, rewriting source and\ndestination, and dispatching the temporary to subscribers. That legacy\nevent storage is smaller than struct snd_seq_ump_event.\n\nWhen a UMP event reaches the dummy client, the copy leaves the UMP flag\nset but only provides legacy-sized stack storage. The subscriber\ndelivery path then uses snd_seq_event_packet_size() and copies a\nUMP-sized packet from that stack object, reading past the end of the\ntemporary.\n\nUse the existing union __snd_seq_event storage and copy the packet size\nreported for the incoming event before rewriting the common routing\nfields. This preserves the full UMP packet for UMP events while keeping\nlegacy event handling unchanged.","published_at":"2026-06-25T08:39:36.482000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"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/a7ef78a2c536242ccb7a4429da01580b2409bb24","https://git.kernel.org/stable/c/6671a46144f880c5a167930ebb14c12f3d059fe9","https://git.kernel.org/stable/c/6676b6063440561db600494049ce7ffb695c8cc4","https://git.kernel.org/stable/c/2b5ff4db5d7aa5b981d966df02e687f79ad7b311"],"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":"2026-06-28T17:55:28.590503Z","updated_at":"2026-06-28T23:30:51.545322Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"32cb23a0f911317cdb5030035e49a204aa86fef5","version_start_inclusive":true,"version_end":"a7ef78a2c536242ccb7a4429da01580b2409bb24","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:32cb23a0f911317cdb5030035e49a204aa86fef5:a7ef78a2c536242ccb7a4429da01580b2409bb24"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"32cb23a0f911317cdb5030035e49a204aa86fef5","version_start_inclusive":true,"version_end":"6671a46144f880c5a167930ebb14c12f3d059fe9","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:32cb23a0f911317cdb5030035e49a204aa86fef5:6671a46144f880c5a167930ebb14c12f3d059fe9"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"32cb23a0f911317cdb5030035e49a204aa86fef5","version_start_inclusive":true,"version_end":"6676b6063440561db600494049ce7ffb695c8cc4","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:32cb23a0f911317cdb5030035e49a204aa86fef5:6676b6063440561db600494049ce7ffb695c8cc4"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"32cb23a0f911317cdb5030035e49a204aa86fef5","version_start_inclusive":true,"version_end":"2b5ff4db5d7aa5b981d966df02e687f79ad7b311","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:32cb23a0f911317cdb5030035e49a204aa86fef5:2b5ff4db5d7aa5b981d966df02e687f79ad7b311"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.10","version_start_inclusive":true,"version_end":"6.10","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.10:6.10"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"0","version_start_inclusive":true,"version_end":"6.10","version_end_inclusive":false,"cpe23_uri":"cve5:linux:linux:0:6.10"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.12.94","version_start_inclusive":true,"version_end":"6.12.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.12.94:6.12.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"6.18.36","version_start_inclusive":true,"version_end":"6.18.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:6.18.36:6.18.*"},{"vendor_slug":"linux","vendor_name":"Linux","product_slug":"linux","product_name":"Linux","version_start":"7.0.13","version_start_inclusive":true,"version_end":"7.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:linux:linux:7.0.13:7.0.*"},{"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/a7ef78a2c536242ccb7a4429da01580b2409bb24","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/6671a46144f880c5a167930ebb14c12f3d059fe9","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/6676b6063440561db600494049ce7ffb695c8cc4","source_type":"MISC","tags":[]},{"url":"https://git.kernel.org/stable/c/2b5ff4db5d7aa5b981d966df02e687f79ad7b311","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-06-25T08:39:36.482000Z","label":"CVE published","source":null}]}