{"cve":"CVE-2021-1940","nvd":{"published":"2021-07-13T06:15:08.797","modified":"2026-06-17T03:32:57.367","status":"Modified","description":"Use after free can occur due to improper handling of response from firmware in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["http://packetstormsecurity.com/files/172856/Qualcomm-NPU-Use-After-Free-Information-Leak.html","https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin","http://packetstormsecurity.com/files/172856/Qualcomm-NPU-Use-After-Free-Information-Leak.html","https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin"],"products":["qualcomm:aqt1000_firmware","qualcomm:ar8031_firmware","qualcomm:ar8035_firmware","qualcomm:csra6620_firmware","qualcomm:csra6640_firmware","qualcomm:fsm10055_firmware","qualcomm:fsm10056_firmware","qualcomm:qca6391_firmware","qualcomm:qca6420_firmware","qualcomm:qca6430_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:qcm6125_firmware","qualcomm:qcs405_firmware","qualcomm:qcs410_firmware","qualcomm:qcs610_firmware","qualcomm:qcs6125_firmware","qualcomm:sa415m_firmware","qualcomm:sa515m_firmware","qualcomm:sa6145p_firmware","qualcomm:sa6155_firmware","qualcomm:sa6155p_firmware","qualcomm:sa8155_firmware","qualcomm:sa8155p_firmware","qualcomm:sa8195p_firmware","qualcomm:sd660_firmware","qualcomm:sd665_firmware","qualcomm:sd675_firmware","qualcomm:sd678_firmware","qualcomm:sd720g_firmware","qualcomm:sd730_firmware","qualcomm:sd855_firmware","qualcomm:sd_675_firmware","qualcomm:sd_8c_firmware","qualcomm:sd_8cx_firmware","qualcomm:sda429w_firmware","qualcomm:sdx50m_firmware","qualcomm:sdx55_firmware","qualcomm:sdx55m_firmware","qualcomm:sm6250_firmware","qualcomm:sm6250p_firmware","qualcomm:wcd9335_firmware"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-1940","score":0.00185,"percentile":0.08127,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}