{"cve":"CVE-2021-1920","nvd":{"published":"2021-09-08T12:15:07.963","modified":"2026-06-17T03:32:52.277","status":"Modified","description":"Integer underflow can occur due to improper handling of incoming RTCP packets in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-191"],"references":["https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin","https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin"],"products":["qualcomm:apq8009_firmware","qualcomm:apq8009w_firmware","qualcomm:apq8017_firmware","qualcomm:apq8037_firmware","qualcomm:apq8053_firmware","qualcomm:apq8084_firmware","qualcomm:apq8096au_firmware","qualcomm:aqt1000_firmware","qualcomm:ar6003_firmware","qualcomm:csr6030_firmware","qualcomm:csrb31024_firmware","qualcomm:mdm8207_firmware","qualcomm:mdm8215_firmware","qualcomm:mdm8215m_firmware","qualcomm:mdm8615m_firmware","qualcomm:mdm9150_firmware","qualcomm:mdm9205_firmware","qualcomm:mdm9206_firmware","qualcomm:mdm9207_firmware","qualcomm:mdm9215_firmware","qualcomm:mdm9230_firmware","qualcomm:mdm9250_firmware","qualcomm:mdm9310_firmware","qualcomm:mdm9330_firmware","qualcomm:mdm9607_firmware","qualcomm:mdm9615_firmware","qualcomm:mdm9615m_firmware","qualcomm:mdm9625_firmware","qualcomm:mdm9628_firmware","qualcomm:mdm9630_firmware","qualcomm:mdm9635m_firmware","qualcomm:mdm9640_firmware","qualcomm:mdm9645_firmware","qualcomm:mdm9650_firmware","qualcomm:mdm9655_firmware","qualcomm:msm8108_firmware","qualcomm:msm8208_firmware","qualcomm:msm8209_firmware","qualcomm:msm8608_firmware","qualcomm:msm8909w_firmware","qualcomm:msm8917_firmware","qualcomm:msm8920_firmware","qualcomm:msm8937_firmware","qualcomm:msm8940_firmware","qualcomm:msm8953_firmware","qualcomm:msm8976_firmware","qualcomm:msm8976sg_firmware","qualcomm:msm8996au_firmware","qualcomm:qca1990_firmware","qualcomm:qca4004_firmware"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-1920","score":0.00796,"percentile":0.56467,"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."]}