{"id":"CVE-2021-1931","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-1931","generatedAt":"2026-10-27T23:29:20.440Z","title":"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…","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 & Music","published":"2021-07-13T06:15:09.000Z","lastModified":"2026-06-17T03:32:55.000Z","status":"Modified","sourceIdentifier":"product-security@qualcomm.com","cvss":{"version":"3.1","score":6.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["qualcomm/aqt1000 firmware","qualcomm/ar8031 firmware","qualcomm/ar8035 firmware","qualcomm/csra6620 firmware","qualcomm/csra6640 firmware","qualcomm/csrb31024 firmware","qualcomm/fsm10055 firmware","qualcomm/fsm10056 firmware","qualcomm/qca6174a firmware","qualcomm/qca6310 firmware","qualcomm/qca6320 firmware","qualcomm/qca6335 firmware","qualcomm/qca6390 firmware","qualcomm/qca6391 firmware","qualcomm/qca6420 firmware","qualcomm/qca6421 firmware","qualcomm/qca6426 firmware","qualcomm/qca6430 firmware","qualcomm/qca6431 firmware","qualcomm/qca6436 firmware","qualcomm/qca6564 firmware","qualcomm/qca6564a firmware","qualcomm/qca6564au firmware","qualcomm/qca6574 firmware","qualcomm/qca6574a firmware","qualcomm/qca6574au firmware","qualcomm/qca6584au firmware","qualcomm/qca6595au firmware","qualcomm/qca6696 firmware","qualcomm/qca8337 firmware","qualcomm/qca9377 firmware","qualcomm/qcm2290 firmware","qualcomm/qcm4290 firmware","qualcomm/qcm6125 firmware","qualcomm/qcs2290 firmware","qualcomm/qcs405 firmware","qualcomm/qcs410 firmware","qualcomm/qcs4290 firmware","qualcomm/qcs603 firmware","qualcomm/qcs605 firmware","qualcomm/qcs610 firmware","qualcomm/qcs6125 firmware","qualcomm/sa415m firmware","qualcomm/sa6145p firmware","qualcomm/sa6150p firmware","qualcomm/sa6155 firmware","qualcomm/sa6155p firmware","qualcomm/sa8145p firmware","qualcomm/sa8150p firmware","qualcomm/sa8155 firmware","qualcomm/sa8155p firmware","qualcomm/sa8195p firmware","qualcomm/sd 636 firmware","qualcomm/sd 675 firmware","qualcomm/sd 8c firmware","qualcomm/sd 8cx firmware","qualcomm/sd460 firmware","qualcomm/sd480 firmware","qualcomm/sd660 firmware","qualcomm/sd662 firmware"],"epss":{"score":0.00223,"percentile":0.12834,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin","tags":["Patch","Vendor Advisory"],"source":"product-security@qualcomm.com"},{"url":"https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-1931","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}