{"id":"CVE-2018-11820","aliases":["EUVD-2018-3812","GHSA-pw5q-c3cx-h8wc"],"status":"published","title":"Use of non-time constant memcmp function creates side channel that leaks information and leads to...","description":"Use of non-time constant memcmp function creates side channel that leaks information and leads to cryptographic issues in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wired Infrastructure and Networking in versions IPQ8074, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MDM9655, MSM8996AU, QCA8081, QCS605, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 800, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 8CX, SDA660, SDM439, SDM630, SDM660, Snapdragon_High_Med_2016, SXR1130.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00231,"percentile":0.14014,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-02-25T22:29:02.4Z","modified":"2026-06-17T01:36:39Z","products":[{"vendor":"qualcomm","product":"ipq8074_firmware"},{"vendor":"qualcomm","product":"mdm9150_firmware"},{"vendor":"qualcomm","product":"mdm9206_firmware"},{"vendor":"qualcomm","product":"mdm9607_firmware"},{"vendor":"qualcomm","product":"mdm9640_firmware"},{"vendor":"qualcomm","product":"mdm9650_firmware"},{"vendor":"qualcomm","product":"mdm9655_firmware"},{"vendor":"qualcomm","product":"msm8996au_firmware"},{"vendor":"qualcomm","product":"qca8081_firmware"},{"vendor":"qualcomm","product":"qcs605_firmware"},{"vendor":"qualcomm","product":"sd_205_firmware"},{"vendor":"qualcomm","product":"sd_210_firmware"},{"vendor":"qualcomm","product":"sd_212_firmware"},{"vendor":"qualcomm","product":"sd_410_firmware"},{"vendor":"qualcomm","product":"sd_412_firmware"},{"vendor":"qualcomm","product":"sd_415_firmware"},{"vendor":"qualcomm","product":"sd_425_firmware"},{"vendor":"qualcomm","product":"sd_427_firmware"},{"vendor":"qualcomm","product":"sd_429_firmware"},{"vendor":"qualcomm","product":"sd_430_firmware"},{"vendor":"qualcomm","product":"sd_435_firmware"},{"vendor":"qualcomm","product":"sd_439_firmware"},{"vendor":"qualcomm","product":"sd_450_firmware"},{"vendor":"qualcomm","product":"sd_615_firmware"},{"vendor":"qualcomm","product":"sd_616_firmware"},{"vendor":"qualcomm","product":"sd_625_firmware"},{"vendor":"qualcomm","product":"sd_632_firmware"},{"vendor":"qualcomm","product":"sd_636_firmware"},{"vendor":"qualcomm","product":"sd_650_firmware"},{"vendor":"qualcomm","product":"sd_652_firmware"},{"vendor":"qualcomm","product":"sd_670_firmware"},{"vendor":"qualcomm","product":"sd_710_firmware"},{"vendor":"qualcomm","product":"sd_712_firmware"},{"vendor":"qualcomm","product":"sd_800_firmware"},{"vendor":"qualcomm","product":"sd_820_firmware"},{"vendor":"qualcomm","product":"sd_820a_firmware"},{"vendor":"qualcomm","product":"sd_835_firmware"},{"vendor":"qualcomm","product":"sd_845_firmware"},{"vendor":"qualcomm","product":"sd_850_firmware"},{"vendor":"qualcomm","product":"sd_8cx_firmware"},{"vendor":"qualcomm","product":"sda660_firmware"},{"vendor":"qualcomm","product":"sdm439_firmware"},{"vendor":"qualcomm","product":"sdm630_firmware"},{"vendor":"qualcomm","product":"sdm660_firmware"},{"vendor":"qualcomm","product":"snapdragon_high_med_2016_firmware"},{"vendor":"qualcomm","product":"sxr1130_firmware"},{"vendor":"qualcomm, inc.","product":"snapdragon auto, snapdragon compute, snapdragon connectivity, snapdragon consumer electronics connectivity, snapdragon consumer iot, snapdragon industrial iot, snapdragon iot, snapdragon mobile, snapdragon voice \u0026 music, snapdragon wired infrastructure and networking"}],"references":[{"url":"https://www.qualcomm.com/company/product-security/bulletins","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/106845","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-11820"},{"url":"https://github.com/advisories/GHSA-pw5q-c3cx-h8wc"}],"sources":{"cve":[{"id":"CVE-2018-11820","description":"Use of non-time constant memcmp function creates side channel that leaks information and leads to cryptographic issues in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wired Infrastructure and Networking in versions IPQ8074, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MDM9655, MSM8996AU, QCA8081, QCS605, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 800, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 8CX, SDA660, SDM439, SDM630, SDM660, Snapdragon_High_Med_2016, SXR1130.","status":"published","published":"2019-02-25T23:00:00Z","modified":"2024-08-05T08:17:09.236Z","updated_at":"2026-11-02T14:35:09.139955Z"}],"euvd":[{"id":"EUVD-2018-3812","description":"Use of non-time constant memcmp function creates side channel that leaks information and leads to cryptographic issues in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wired Infrastructure and Networking in versions IPQ8074, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MDM9655, MSM8996AU, QCA8081, QCS605, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 800, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 8CX, SDA660, SDM439, SDM630, SDM660, Snapdragon_High_Med_2016, SXR1130.","status":"published","published":"2019-02-25T23:00:00Z","modified":"2024-08-05T08:17:09Z","updated_at":"2026-11-03T02:39:54.565302Z"}],"ghsa":[{"id":"GHSA-pw5q-c3cx-h8wc","title":"Use of non-time constant memcmp function creates side channel that leaks information and leads to...","description":"Use of non-time constant memcmp function creates side channel that leaks information and leads to cryptographic issues in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wired Infrastructure and Networking in versions IPQ8074, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MDM9655, MSM8996AU, QCA8081, QCS605, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 800, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 8CX, SDA660, SDM439, SDM630, SDM660, Snapdragon_High_Med_2016, SXR1130.","status":"published","published":"2022-05-13T01:18:59Z","modified":"2023-02-01T05:05:53Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:50:17.420383Z"}],"nvd":[{"id":"CVE-2018-11820","description":"Use of non-time constant memcmp function creates side channel that leaks information and leads to cryptographic issues in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wired Infrastructure and Networking in versions IPQ8074, MDM9150, MDM9206, MDM9607, MDM9640, MDM9650, MDM9655, MSM8996AU, QCA8081, QCS605, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 800, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 8CX, SDA660, SDM439, SDM630, SDM660, Snapdragon_High_Med_2016, SXR1130.","status":"published","published":"2019-02-25T22:29:02.4Z","modified":"2026-06-17T01:36:39.313Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:C/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:04:54.21788Z"}]}}