Is CVE-2019-20566 actively exploited?

No active exploitation of CVE-2019-20566 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-20566 be exploited remotely?

Yes. CVE-2019-20566 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2019-20566?

CVE-2019-20566 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2019-20566

CRITICAL

CVE-2019-20566

CWE-787Published: March 24, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered on Samsung mobile devices with any (before September 2019 for SMP1300 Exynos modem chipsets) software. Attackers can trigger stack corruption in the Shannon modem via a crafted RP-Originator/Destination address. The Samsung ID is SVE-2019-14858 (September 2019).

NVD Source

Technical Analysis

CVE-2019-20566 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.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.