CVE-2020-3686

Possible memory out of bound issue during music playback when an incorrect bit stream content is copied into array without checking the length of array in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Published: 2021-01-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-3686 is rated Moderate Risk (62.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.19%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-3686

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.22% 1.19% +0.97%
2 2025-11-21 0.33% 0.22% -0.11%
3 2025-11-18 — 0.33% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-3686

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2020-3686

Affected software / configurations for CVE-2020-3686

Vendor Product Version Raw CPE
qualcomm apq8009 — cpe:2.3:h:qualcomm:apq8009:-:*:*:*:*:*:*:*
qualcomm apq8009w — cpe:2.3:h:qualcomm:apq8009w:-:*:*:*:*:*:*:*
qualcomm apq8017 — cpe:2.3:h:qualcomm:apq8017:-:*:*:*:*:*:*:*
qualcomm apq8030 — cpe:2.3:h:qualcomm:apq8030:-:*:*:*:*:*:*:*
qualcomm apq8037 — cpe:2.3:h:qualcomm:apq8037:-:*:*:*:*:*:*:*
qualcomm apq8052 — cpe:2.3:h:qualcomm:apq8052:-:*:*:*:*:*:*:*
qualcomm apq8053 — cpe:2.3:h:qualcomm:apq8053:-:*:*:*:*:*:*:*
qualcomm apq8056 — cpe:2.3:h:qualcomm:apq8056:-:*:*:*:*:*:*:*
qualcomm apq8060a — cpe:2.3:h:qualcomm:apq8060a:-:*:*:*:*:*:*:*
qualcomm apq8062 — cpe:2.3:h:qualcomm:apq8062:-:*:*:*:*:*:*:*
qualcomm apq8064 — cpe:2.3:h:qualcomm:apq8064:-:*:*:*:*:*:*:*
qualcomm apq8064au — cpe:2.3:h:qualcomm:apq8064au:-:*:*:*:*:*:*:*
qualcomm apq8076 — cpe:2.3:h:qualcomm:apq8076:-:*:*:*:*:*:*:*
qualcomm apq8084 — cpe:2.3:h:qualcomm:apq8084:-:*:*:*:*:*:*:*
qualcomm apq8096au — cpe:2.3:h:qualcomm:apq8096au:-:*:*:*:*:*:*:*
qualcomm aqt1000 — cpe:2.3:h:qualcomm:aqt1000:-:*:*:*:*:*:*:*
qualcomm ar6003 — cpe:2.3:h:qualcomm:ar6003:-:*:*:*:*:*:*:*
qualcomm ar8031 — cpe:2.3:h:qualcomm:ar8031:-:*:*:*:*:*:*:*
qualcomm ar8035 — cpe:2.3:h:qualcomm:ar8035:-:*:*:*:*:*:*:*
qualcomm ar8151 — cpe:2.3:h:qualcomm:ar8151:-:*:*:*:*:*:*:*
qualcomm csra6620 — cpe:2.3:h:qualcomm:csra6620:-:*:*:*:*:*:*:*
qualcomm csra6640 — cpe:2.3:h:qualcomm:csra6640:-:*:*:*:*:*:*:*
qualcomm csrb31024 — cpe:2.3:h:qualcomm:csrb31024:-:*:*:*:*:*:*:*
qualcomm mdm8215 — cpe:2.3:h:qualcomm:mdm8215:-:*:*:*:*:*:*:*
qualcomm mdm8215m — cpe:2.3:h:qualcomm:mdm8215m:-:*:*:*:*:*:*:*
qualcomm mdm8615m — cpe:2.3:h:qualcomm:mdm8615m:-:*:*:*:*:*:*:*
qualcomm mdm8635m — cpe:2.3:h:qualcomm:mdm8635m:-:*:*:*:*:*:*:*
qualcomm mdm9215 — cpe:2.3:h:qualcomm:mdm9215:-:*:*:*:*:*:*:*
qualcomm mdm9225 — cpe:2.3:h:qualcomm:mdm9225:-:*:*:*:*:*:*:*
qualcomm mdm9225m — cpe:2.3:h:qualcomm:mdm9225m:-:*:*:*:*:*:*:*
qualcomm mdm9230 — cpe:2.3:h:qualcomm:mdm9230:-:*:*:*:*:*:*:*
qualcomm mdm9235m — cpe:2.3:h:qualcomm:mdm9235m:-:*:*:*:*:*:*:*
qualcomm mdm9310 — cpe:2.3:h:qualcomm:mdm9310:-:*:*:*:*:*:*:*
qualcomm mdm9330 — cpe:2.3:h:qualcomm:mdm9330:-:*:*:*:*:*:*:*
qualcomm mdm9607 — cpe:2.3:h:qualcomm:mdm9607:-:*:*:*:*:*:*:*
qualcomm mdm9615 — cpe:2.3:h:qualcomm:mdm9615:-:*:*:*:*:*:*:*
qualcomm mdm9615m — cpe:2.3:h:qualcomm:mdm9615m:-:*:*:*:*:*:*:*
qualcomm mdm9625 — cpe:2.3:h:qualcomm:mdm9625:-:*:*:*:*:*:*:*
qualcomm mdm9625m — cpe:2.3:h:qualcomm:mdm9625m:-:*:*:*:*:*:*:*
qualcomm mdm9628 — cpe:2.3:h:qualcomm:mdm9628:-:*:*:*:*:*:*:*
qualcomm mdm9630 — cpe:2.3:h:qualcomm:mdm9630:-:*:*:*:*:*:*:*
qualcomm mdm9635m — cpe:2.3:h:qualcomm:mdm9635m:-:*:*:*:*:*:*:*
qualcomm mdm9640 — cpe:2.3:h:qualcomm:mdm9640:-:*:*:*:*:*:*:*
qualcomm mdm9645 — cpe:2.3:h:qualcomm:mdm9645:-:*:*:*:*:*:*:*
qualcomm mdm9650 — cpe:2.3:h:qualcomm:mdm9650:-:*:*:*:*:*:*:*
qualcomm mdm9655 — cpe:2.3:h:qualcomm:mdm9655:-:*:*:*:*:*:*:*
qualcomm mpq8064 — cpe:2.3:h:qualcomm:mpq8064:-:*:*:*:*:*:*:*
qualcomm msm8108 — cpe:2.3:h:qualcomm:msm8108:-:*:*:*:*:*:*:*
qualcomm msm8208 — cpe:2.3:h:qualcomm:msm8208:-:*:*:*:*:*:*:*
qualcomm msm8209 — cpe:2.3:h:qualcomm:msm8209:-:*:*:*:*:*:*:*
qualcomm msm8226 — cpe:2.3:h:qualcomm:msm8226:-:*:*:*:*:*:*:*
qualcomm msm8227 — cpe:2.3:h:qualcomm:msm8227:-:*:*:*:*:*:*:*
qualcomm msm8230 — cpe:2.3:h:qualcomm:msm8230:-:*:*:*:*:*:*:*
qualcomm msm8608 — cpe:2.3:h:qualcomm:msm8608:-:*:*:*:*:*:*:*
qualcomm msm8610 — cpe:2.3:h:qualcomm:msm8610:-:*:*:*:*:*:*:*
qualcomm msm8627 — cpe:2.3:h:qualcomm:msm8627:-:*:*:*:*:*:*:*
qualcomm msm8630 — cpe:2.3:h:qualcomm:msm8630:-:*:*:*:*:*:*:*
qualcomm msm8909w — cpe:2.3:h:qualcomm:msm8909w:-:*:*:*:*:*:*:*
qualcomm msm8917 — cpe:2.3:h:qualcomm:msm8917:-:*:*:*:*:*:*:*
qualcomm msm8920 — cpe:2.3:h:qualcomm:msm8920:-:*:*:*:*:*:*:*
qualcomm msm8930 — cpe:2.3:h:qualcomm:msm8930:-:*:*:*:*:*:*:*
qualcomm msm8940 — cpe:2.3:h:qualcomm:msm8940:-:*:*:*:*:*:*:*
qualcomm msm8952 — cpe:2.3:h:qualcomm:msm8952:-:*:*:*:*:*:*:*
qualcomm msm8953 — cpe:2.3:h:qualcomm:msm8953:-:*:*:*:*:*:*:*
qualcomm msm8956 — cpe:2.3:h:qualcomm:msm8956:-:*:*:*:*:*:*:*
qualcomm msm8960 — cpe:2.3:h:qualcomm:msm8960:-:*:*:*:*:*:*:*
qualcomm msm8960sg — cpe:2.3:h:qualcomm:msm8960sg:-:*:*:*:*:*:*:*
qualcomm msm8962 — cpe:2.3:h:qualcomm:msm8962:-:*:*:*:*:*:*:*
qualcomm msm8976 — cpe:2.3:h:qualcomm:msm8976:-:*:*:*:*:*:*:*
qualcomm msm8976sg — cpe:2.3:h:qualcomm:msm8976sg:-:*:*:*:*:*:*:*
qualcomm msm8996au — cpe:2.3:h:qualcomm:msm8996au:-:*:*:*:*:*:*:*
qualcomm pm215 — cpe:2.3:h:qualcomm:pm215:-:*:*:*:*:*:*:*
qualcomm pm3003a — cpe:2.3:h:qualcomm:pm3003a:-:*:*:*:*:*:*:*
qualcomm pm4125 — cpe:2.3:h:qualcomm:pm4125:-:*:*:*:*:*:*:*
qualcomm pm439 — cpe:2.3:h:qualcomm:pm439:-:*:*:*:*:*:*:*
qualcomm pm456 — cpe:2.3:h:qualcomm:pm456:-:*:*:*:*:*:*:*
qualcomm pm6125 — cpe:2.3:h:qualcomm:pm6125:-:*:*:*:*:*:*:*
qualcomm pm6150 — cpe:2.3:h:qualcomm:pm6150:-:*:*:*:*:*:*:*
qualcomm pm6150a — cpe:2.3:h:qualcomm:pm6150a:-:*:*:*:*:*:*:*
qualcomm pm6150l — cpe:2.3:h:qualcomm:pm6150l:-:*:*:*:*:*:*:*

References for CVE-2020-3686

cvelogic Threat Intelligence