{"id":"CVE-2021-1971","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-1971","generatedAt":"2026-10-27T23:27:12.280Z","title":"Possible assertion due to lack of physical layer state validation in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired…","description":"Possible assertion due to lack of physical layer state validation in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking","published":"2021-09-09T08:15:26.000Z","lastModified":"2026-06-17T03:33:04.000Z","status":"Modified","sourceIdentifier":"product-security@qualcomm.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-617"],"affected":["qualcomm/aqt1000 firmware","qualcomm/ar8035 firmware","qualcomm/csr8811 firmware","qualcomm/csrb31024 firmware","qualcomm/ipq5010 firmware","qualcomm/ipq5018 firmware","qualcomm/ipq6000 firmware","qualcomm/ipq6005 firmware","qualcomm/ipq6010 firmware","qualcomm/ipq6018 firmware","qualcomm/ipq6028 firmware","qualcomm/ipq8070 firmware","qualcomm/ipq8070a firmware","qualcomm/ipq8071 firmware","qualcomm/ipq8071a firmware","qualcomm/ipq8072 firmware","qualcomm/ipq8072a firmware","qualcomm/ipq8074 firmware","qualcomm/ipq8074a firmware","qualcomm/ipq8076 firmware","qualcomm/ipq8076a firmware","qualcomm/ipq8078 firmware","qualcomm/ipq8078a firmware","qualcomm/ipq8173 firmware","qualcomm/ipq8174 firmware","qualcomm/qca1062 firmware","qualcomm/qca1064 firmware","qualcomm/qca2062 firmware","qualcomm/qca2064 firmware","qualcomm/qca2065 firmware","qualcomm/qca2066 firmware","qualcomm/qca4024 firmware","qualcomm/qca6175a firmware","qualcomm/qca6390 firmware","qualcomm/qca6391 firmware","qualcomm/qca6420 firmware","qualcomm/qca6421 firmware","qualcomm/qca6426 firmware","qualcomm/qca6428 firmware","qualcomm/qca6430 firmware","qualcomm/qca6431 firmware","qualcomm/qca6436 firmware","qualcomm/qca6438 firmware","qualcomm/qca6564a firmware","qualcomm/qca6564au firmware","qualcomm/qca6574 firmware","qualcomm/qca6574a firmware","qualcomm/qca6574au firmware","qualcomm/qca6584au firmware","qualcomm/qca6595 firmware","qualcomm/qca6595au firmware","qualcomm/qca6694 firmware","qualcomm/qca6696 firmware","qualcomm/qca8072 firmware","qualcomm/qca8075 firmware","qualcomm/qca8081 firmware","qualcomm/qca8337 firmware","qualcomm/qca9888 firmware","qualcomm/qca9889 firmware","qualcomm/qca9984 firmware"],"epss":{"score":0.00598,"percentile":0.48329,"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 (0.60%). 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/september-2021-bulletin","tags":["Vendor Advisory"],"source":"product-security@qualcomm.com"},{"url":"https://www.qualcomm.com/company/product-security/bulletins/september-2021-bulletin","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-1971","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."}