{"id":"CVE-2021-1983","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-1983","generatedAt":"2026-10-27T22:24:32.238Z","title":"Possible buffer overflow due to improper handling of negative data length while processing write request in VR service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon…","description":"Possible buffer overflow due to improper handling of negative data length while processing write request in VR service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables","published":"2021-10-20T07:15:08.000Z","lastModified":"2026-06-17T03:33:07.000Z","status":"Modified","sourceIdentifier":"product-security@qualcomm.com","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["qualcomm/apq8017 firmware","qualcomm/apq8053 firmware","qualcomm/apq8064au firmware","qualcomm/apq8096au firmware","qualcomm/aqt1000 firmware","qualcomm/msm8917 firmware","qualcomm/msm8953 firmware","qualcomm/msm8996au firmware","qualcomm/qca6310 firmware","qualcomm/qca6320 firmware","qualcomm/qca6335 firmware","qualcomm/qca6390 firmware","qualcomm/qca6391 firmware","qualcomm/qca6420 firmware","qualcomm/qca6426 firmware","qualcomm/qca6430 firmware","qualcomm/qca6436 firmware","qualcomm/qca6564a firmware","qualcomm/qca6564au firmware","qualcomm/qca6574a firmware","qualcomm/qca6574au firmware","qualcomm/qcm2290 firmware","qualcomm/qcm4290 firmware","qualcomm/qcm6125 firmware","qualcomm/qcm6490 firmware","qualcomm/qcs2290 firmware","qualcomm/qcs4290 firmware","qualcomm/qcs603 firmware","qualcomm/qcs605 firmware","qualcomm/qcs610 firmware","qualcomm/qcs6125 firmware","qualcomm/qcs6490 firmware","qualcomm/qualcomm215 firmware","qualcomm/sd 455 firmware","qualcomm/sd 636 firmware","qualcomm/sd 675 firmware","qualcomm/sd205 firmware","qualcomm/sd210 firmware","qualcomm/sd429 firmware","qualcomm/sd439 firmware","qualcomm/sd460 firmware","qualcomm/sd480 firmware","qualcomm/sd632 firmware","qualcomm/sd662 firmware","qualcomm/sd665 firmware","qualcomm/sd675 firmware","qualcomm/sd678 firmware","qualcomm/sd690 5g firmware","qualcomm/sd720g firmware","qualcomm/sd730 firmware","qualcomm/sd750g firmware","qualcomm/sd765 firmware","qualcomm/sd765g firmware","qualcomm/sd768g firmware","qualcomm/sd778g firmware","qualcomm/sd780g firmware","qualcomm/sd855 firmware","qualcomm/sd865 5g firmware","qualcomm/sd870 firmware","qualcomm/sd888 firmware"],"epss":{"score":0.00162,"percentile":0.05356,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.qualcomm.com/company/product-security/bulletins/october-2021-bulletin","tags":["Vendor Advisory"],"source":"product-security@qualcomm.com"},{"url":"https://www.qualcomm.com/company/product-security/bulletins/october-2021-bulletin","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-1983","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."}