{"id":"CVE-2025-21439","aliases":["EUVD-2025-9993","GHSA-4fr5-x8r3-mvxg"],"status":"published","title":"Out-of-bounds Read in Windows WLAN Host","description":"Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies the content to the provided output buffer.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00109,"percentile":0.01254,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2025-04-07T10:16:07Z","modified":"2026-06-17T08:43:25Z","products":[{"vendor":"qualcomm","product":"fastconnect_6700_firmware"},{"vendor":"qualcomm","product":"fastconnect_6900_firmware"},{"vendor":"qualcomm","product":"qca6595au_firmware"},{"vendor":"qualcomm","product":"qcm5430_firmware"},{"vendor":"qualcomm","product":"qcm6490_firmware"},{"vendor":"qualcomm","product":"qcn7605_firmware"},{"vendor":"qualcomm","product":"qcn7606_firmware"},{"vendor":"qualcomm","product":"qcs5430_firmware"},{"vendor":"qualcomm","product":"qcs6490_firmware"},{"vendor":"qualcomm","product":"sc8180x\\+sdx55_firmware"},{"vendor":"qualcomm","product":"snapdragon_8c_compute_platform_\\(sc8180x-ad\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8c_compute_platform_\\(sc8180xp-ad\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_compute_platform_\\(sc8180x-aa\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_compute_platform_\\(sc8180x-ab\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_compute_platform_\\(sc8180xp-ac\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_compute_platform_\\(sc8180xp-af\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_gen_2_5g_compute_platform_\\(sc8180x-ac\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_gen_2_5g_compute_platform_\\(sc8180x-af\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_gen_2_5g_compute_platform_\\(sc8180xp-aa\\)_firmware"},{"vendor":"qualcomm","product":"snapdragon_8cx_gen_2_5g_compute_platform_\\(sc8180xp-ab\\)_firmware"},{"vendor":"qualcomm","product":"video_collaboration_vc3_platform_firmware"},{"vendor":"qualcomm","product":"wcd9370_firmware"},{"vendor":"qualcomm","product":"wcd9375_firmware"},{"vendor":"qualcomm","product":"wcd9380_firmware"},{"vendor":"qualcomm","product":"wcd9385_firmware"},{"vendor":"qualcomm, inc.","product":"snapdragon"}],"references":[{"url":"https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2025-bulletin.html","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21439"},{"url":"https://github.com/advisories/GHSA-4fr5-x8r3-mvxg"}],"sources":{"cve":[{"id":"CVE-2025-21439","title":"Out-of-bounds Read in Windows WLAN Host","description":"Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies the content to the provided output buffer.","status":"published","published":"2025-04-07T10:16:07.416Z","modified":"2026-02-26T18:28:48.803Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:32:32.30152Z"}],"euvd":[{"id":"EUVD-2025-9993","description":"Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies the content to the provided output buffer.","status":"published","published":"2025-04-07T10:16:07Z","modified":"2026-02-26T18:28:48Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:48:16.990344Z"}],"ghsa":[{"id":"GHSA-4fr5-x8r3-mvxg","title":"Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies...","description":"Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies the content to the provided output buffer.","status":"published","published":"2025-04-07T12:33:18Z","modified":"2025-04-07T12:33:27Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:00:49.48461Z"}],"nvd":[{"id":"CVE-2025-21439","description":"Memory corruption may occur while reading board data via IOCTL call when the WLAN driver copies the content to the provided output buffer.","status":"published","published":"2025-04-07T11:15:52.457Z","modified":"2026-06-17T08:43:25.223Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:10:59.48027Z"}]}}