CVE-2019-20566

Name: CVE-2019-20566
Creator: NVD / NIST
Published: 2020-03-24T19:15:19.29+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.43%

Last modified Jun 17, 2026

CVE-2019-20566 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.43% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.43%

69.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Samsung	Exynos Smp1300	All versions

References

https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory

Timeline

Published: Mar 24, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20566?

How severe is CVE-2019-20566?

CVE-2019-20566 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20566?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20566?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST