Is CVE-2020-3703 actively exploited?

No active exploitation of CVE-2020-3703 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3703 be exploited remotely?

Yes. CVE-2020-3703 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3703?

CVE-2020-3703 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-3703

CRITICAL

CVE-2020-3703

CWE-20Published: November 2, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

u'Buffer over-read issue in Bluetooth peripheral firmware due to lack of check for invalid opcode and length of opcode received from central device(This CVE is equivalent to Link Layer Length Overfow issue (CVE-2019-16336,CVE-2019-17519) and Silent Length Overflow issue(CVE-2019-17518) mentioned in sweyntooth paper)' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music in APQ8053, APQ8076, AR9344, Bitra, Kamorta, MDM9206, MDM9207C, MDM9607, MSM8905, MSM8917, MSM8937, MSM8940, MSM8953, Nicobar, QCA6174A, QCA9377, QCM2150, QCM6125, QCS404, QCS405, QCS605, QCS610, QM215, Rennell, SC8180X, SDM429, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDX20, SDX24, SM6150, SM7150, SM8150, SXR1130

NVD Source

Technical Analysis

CVE-2020-3703 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.