CVE-2019-20556

Name: CVE-2019-20556
Creator: NVD / NIST
Published: 2020-03-24T19:15:18.603+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2019-20556 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered on Samsung mobile devices with P(9.0) (SM6150, SM8150, SM8150_FUSION, exynos7885, exynos9610, and exynos9820 chipsets) software. RKP memory corruption allows attackers to control the effective address in EL2. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

An issue was discovered on Samsung mobile devices with P(9.0) (SM6150, SM8150, SM8150_FUSION, exynos7885, exynos9610, and exynos9820 chipsets) software. RKP memory corruption allows attackers to control the effective address in EL2. The Samsung ID is SVE-2019-15221 (October 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

0.44%

35.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Google	Android	9.0

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-2019-20556?

How severe is CVE-2019-20556?

CVE-2019-20556 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20556?

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-2019-20556?

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

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Source: NVD / NIST