{"id":"CVE-2021-1931","aliases":["2820093","A-179057550","ASB-A-179057550","EUVD-2021-7395","GHSA-76g8-78xr-pq89"],"status":"published","title":"Possible buffer overflow due to improper validation of buffer length while processing fast boot...","description":"Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00301,"percentile":0.23043,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-120"],"published":"2021-07-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","exploits":[{"source":"pocgithub","id":"FakeShell/CVE-2021-1931-BBRY-KEY2","title":"FakeShell/CVE-2021-1931-BBRY-KEY2","date":"2025-05-04","url":"https://github.com/FakeShell/CVE-2021-1931-BBRY-KEY2"},{"source":"pocgithub","id":"aomsin2526/xperia_5_bl_unlocker_poc","title":"aomsin2526/xperia_5_bl_unlocker_poc","date":"2026-07-02","url":"https://github.com/aomsin2526/xperia_5_bl_unlocker_poc"},{"source":"pocgithub","id":"starseed12345/QuestStack","title":"starseed12345/QuestStack","date":"2026-07-31","url":"https://github.com/starseed12345/QuestStack"},{"source":"pocgithub","id":"stanw47/Blackberry-Key2-Research","title":"stanw47/Blackberry-Key2-Research","date":"2026-10-05","url":"https://github.com/stanw47/Blackberry-Key2-Research"}],"fixes":[{"ecosystem":"Android","package":"abl/tianocore/edk2","fixed_in":["SoCVersion:2021-07-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"abl/tianocore/edk2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2021-07-05"}]}],"versions":["SoCVersion"]}],"products":[{"vendor":"qualcomm","product":"aqt1000_firmware"},{"vendor":"qualcomm","product":"ar8031_firmware"},{"vendor":"qualcomm","product":"ar8035_firmware"},{"vendor":"qualcomm","product":"csra6620_firmware"},{"vendor":"qualcomm","product":"csra6640_firmware"},{"vendor":"qualcomm","product":"csrb31024_firmware"},{"vendor":"qualcomm","product":"fsm10055_firmware"},{"vendor":"qualcomm","product":"fsm10056_firmware"},{"vendor":"qualcomm","product":"qca6174a_firmware"},{"vendor":"qualcomm","product":"qca6310_firmware"},{"vendor":"qualcomm","product":"qca6320_firmware"},{"vendor":"qualcomm","product":"qca6335_firmware"},{"vendor":"qualcomm","product":"qca6390_firmware"},{"vendor":"qualcomm","product":"qca6391_firmware"},{"vendor":"qualcomm","product":"qca6420_firmware"},{"vendor":"qualcomm","product":"qca6421_firmware"},{"vendor":"qualcomm","product":"qca6426_firmware"},{"vendor":"qualcomm","product":"qca6430_firmware"},{"vendor":"qualcomm","product":"qca6431_firmware"},{"vendor":"qualcomm","product":"qca6436_firmware"},{"vendor":"qualcomm","product":"qca6564_firmware"},{"vendor":"qualcomm","product":"qca6564a_firmware"},{"vendor":"qualcomm","product":"qca6564au_firmware"},{"vendor":"qualcomm","product":"qca6574_firmware"},{"vendor":"qualcomm","product":"qca6574a_firmware"},{"vendor":"qualcomm","product":"qca6574au_firmware"},{"vendor":"qualcomm","product":"qca6584au_firmware"},{"vendor":"qualcomm","product":"qca6595au_firmware"},{"vendor":"qualcomm","product":"qca6696_firmware"},{"vendor":"qualcomm","product":"qca8337_firmware"},{"vendor":"qualcomm","product":"qca9377_firmware"},{"vendor":"qualcomm","product":"qcm2290_firmware"},{"vendor":"qualcomm","product":"qcm4290_firmware"},{"vendor":"qualcomm","product":"qcm6125_firmware"},{"vendor":"qualcomm","product":"qcs2290_firmware"},{"vendor":"qualcomm","product":"qcs405_firmware"},{"vendor":"qualcomm","product":"qcs410_firmware"},{"vendor":"qualcomm","product":"qcs4290_firmware"},{"vendor":"qualcomm","product":"qcs603_firmware"},{"vendor":"qualcomm","product":"qcs605_firmware"},{"vendor":"qualcomm","product":"qcs610_firmware"},{"vendor":"qualcomm","product":"qcs6125_firmware"},{"vendor":"qualcomm","product":"sa415m_firmware"},{"vendor":"qualcomm","product":"sa6145p_firmware"},{"vendor":"qualcomm","product":"sa6150p_firmware"},{"vendor":"qualcomm","product":"sa6155_firmware"},{"vendor":"qualcomm","product":"sa6155p_firmware"},{"vendor":"qualcomm","product":"sa8145p_firmware"},{"vendor":"qualcomm","product":"sa8150p_firmware"},{"vendor":"qualcomm","product":"sa8155_firmware"},{"vendor":"qualcomm","product":"sa8155p_firmware"},{"vendor":"qualcomm","product":"sa8195p_firmware"},{"vendor":"qualcomm","product":"sd460_firmware"},{"vendor":"qualcomm","product":"sd480_firmware"},{"vendor":"qualcomm","product":"sd660_firmware"},{"vendor":"qualcomm","product":"sd662_firmware"},{"vendor":"qualcomm","product":"sd665_firmware"},{"vendor":"qualcomm","product":"sd670_firmware"},{"vendor":"qualcomm","product":"sd675_firmware"},{"vendor":"qualcomm","product":"sd678_firmware"},{"vendor":"qualcomm","product":"sd690_5g_firmware"},{"vendor":"qualcomm","product":"sd710_firmware"},{"vendor":"qualcomm","product":"sd720g_firmware"},{"vendor":"qualcomm","product":"sd730_firmware"},{"vendor":"qualcomm","product":"sd750g_firmware"},{"vendor":"qualcomm","product":"sd765_firmware"},{"vendor":"qualcomm","product":"sd765g_firmware"},{"vendor":"qualcomm","product":"sd768g_firmware"},{"vendor":"qualcomm","product":"sd778g_firmware"},{"vendor":"qualcomm","product":"sd780g_firmware"},{"vendor":"qualcomm","product":"sd835_firmware"},{"vendor":"qualcomm","product":"sd845_firmware"},{"vendor":"qualcomm","product":"sd855_firmware"},{"vendor":"qualcomm","product":"sd865_5g_firmware"},{"vendor":"qualcomm","product":"sd870_firmware"},{"vendor":"qualcomm","product":"sd888_5g_firmware"},{"vendor":"qualcomm","product":"sd888_firmware"},{"vendor":"qualcomm","product":"sd_636_firmware"},{"vendor":"qualcomm","product":"sd_675_firmware"},{"vendor":"qualcomm","product":"sd_8c_firmware"},{"vendor":"qualcomm","product":"sd_8cx_firmware"},{"vendor":"qualcomm","product":"sdm630_firmware"},{"vendor":"qualcomm","product":"sdm830_firmware"},{"vendor":"qualcomm","product":"sdx24_firmware"},{"vendor":"qualcomm","product":"sdx50m_firmware"},{"vendor":"qualcomm","product":"sdx55_firmware"},{"vendor":"qualcomm","product":"sdx55m_firmware"},{"vendor":"qualcomm","product":"sdxr1_firmware"},{"vendor":"qualcomm","product":"sdxr2_5g_firmware"},{"vendor":"qualcomm","product":"sm4125_firmware"},{"vendor":"qualcomm","product":"sm6250_firmware"},{"vendor":"qualcomm","product":"sm6250p_firmware"},{"vendor":"qualcomm","product":"sm7250p_firmware"},{"vendor":"qualcomm","product":"sm7315_firmware"},{"vendor":"qualcomm","product":"sm7325p_firmware"},{"vendor":"qualcomm","product":"wcd9326_firmware"},{"vendor":"qualcomm","product":"wcd9335_firmware"},{"vendor":"qualcomm","product":"wcd9340_firmware"},{"vendor":"qualcomm","product":"wcd9341_firmware"},{"vendor":"qualcomm","product":"wcd9370_firmware"},{"vendor":"qualcomm","product":"wcd9371_firmware"},{"vendor":"qualcomm","product":"wcd9375_firmware"},{"vendor":"qualcomm","product":"wcd9380_firmware"},{"vendor":"qualcomm","product":"wcd9385_firmware"},{"vendor":"qualcomm","product":"wcn3910_firmware"},{"vendor":"qualcomm","product":"wcn3950_firmware"},{"vendor":"qualcomm","product":"wcn3980_firmware"},{"vendor":"qualcomm","product":"wcn3988_firmware"},{"vendor":"qualcomm","product":"wcn3990_firmware"},{"vendor":"qualcomm","product":"wcn3991_firmware"},{"vendor":"qualcomm","product":"wcn3998_firmware"},{"vendor":"qualcomm","product":"wcn3999_firmware"},{"vendor":"qualcomm","product":"wcn6740_firmware"},{"vendor":"qualcomm","product":"wcn6750_firmware"},{"vendor":"qualcomm","product":"wcn6850_firmware"},{"vendor":"qualcomm","product":"wcn6851_firmware"},{"vendor":"qualcomm","product":"wcn6856_firmware"},{"vendor":"qualcomm","product":"wsa8810_firmware"},{"vendor":"qualcomm","product":"wsa8815_firmware"},{"vendor":"qualcomm","product":"wsa8830_firmware"},{"vendor":"qualcomm","product":"wsa8835_firmware"},{"vendor":"qualcomm, inc.","product":"snapdragon auto, snapdragon compute, snapdragon connectivity, snapdragon consumer iot, snapdragon industrial iot, snapdragon mobile, snapdragon voice \u0026 music"}],"references":[{"url":"https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1931"},{"url":"https://github.com/advisories/GHSA-76g8-78xr-pq89"},{"url":"https://source.android.com/security/bulletin/2021-07-01","tags":["advisory"]},{"url":"https://source.codeaurora.org/quic/le/abl/tianocore/edk2/commit/?id=0727b7b0d4cafb091397b76f75a3a4f66852a361","tags":["fix"]}],"sources":{"cve":[{"id":"CVE-2021-1931","description":"Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","status":"published","published":"2021-07-13T05:30:52Z","modified":"2024-08-03T16:25:06.478Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-7395","description":"Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","status":"published","published":"2021-07-13T05:30:52Z","modified":"2024-08-03T16:25:06Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T03:25:14.091701Z"}],"ghsa":[{"id":"GHSA-76g8-78xr-pq89","title":"Possible buffer overflow due to improper validation of buffer length while processing fast boot...","description":"Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","status":"published","published":"2022-05-24T19:07:46Z","modified":"2023-01-30T05:00:42Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:46:15.885384Z"}],"nvd":[{"id":"CVE-2021-1931","description":"Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music","status":"published","published":"2021-07-13T06:15:08.617Z","modified":"2026-06-17T03:32:55.313Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:55.747384Z"}],"osv":[{"id":"ASB-A-179057550","status":"published","published":"2021-07-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:04:13.670671Z"}]}}
