Is CVE-2020-3639 actively exploited?

No active exploitation of CVE-2020-3639 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3639 be exploited remotely?

Yes. CVE-2020-3639 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3639?

CVE-2020-3639 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-3639

CRITICAL

CVE-2020-3639

CWE-129Published: November 12, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

u'When a non standard SIP sigcomp message is received from the network, then there may be chances of using more UDVM cycle or memory overflow' in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ8017, APQ8037, APQ8053, MDM9250, MDM9607, MDM9628, MDM9640, MDM9650, MSM8108, MSM8208, MSM8209, MSM8608, MSM8905, MSM8909, MSM8917, MSM8920, MSM8937, MSM8940, MSM8953, MSM8996AU, QCM4290, QCM6125, QCS410, QCS4290, QCS603, QCS605, QCS610, QCS6125, QM215, QSM8350, SA415M, SA6145P, SA6150P, SA6155P, SA8150P, SA8155, SA8155P, SA8195P, SC7180, SC8180X, SC8180X+SDX55, SC8180XP, SDA429W, SDA640, SDA660, SDA670, SDA845, SDA855, SDM1000, SDM429, SDM429W, SDM439, SDM450, SDM455, SDM630, SDM632, SDM636, SDM640, SDM660, SDM670, SDM710, SDM712, SDM845, SDM850, SDX24, SDX50M, SDX55, SDX55M, SM4125, SM4250, SM4250P, SM6115, SM6115P, SM6125, SM6150, SM6150P, SM6250, SM6250P, SM7125, SM7150, SM7150P, SM7250, SM7250P, SM8150, SM8150P, SM8350, SM8350P, SXR1120, SXR1130

NVD Source

Technical Analysis

CVE-2020-3639 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.