CVE-2019-20586Network attack vector

Arbitrary code execution via FINGERPRINT Trustlet type confusion

Published Mar 24, 2020 · Updated Aug 5, 2024

Type confusion in the TEEGRIS FINGERPRINT Trustlet on Samsung Android 8.1 and 9.0 devices allows remote attackers to execute arbitrary code. The record identifies type confusion in the trustlet but does not disclose the incompatible resource, attacker-controlled input, or faulty operation. Reachability requires a TEEGRIS-based Samsung device on an affected Android release, and successful exploitation executes code in the trustlet.

CVSS severity9.8
Critical
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in the TEEGRIS FINGERPRINT Trustlet on Samsung Android 8.1 and 9.0 devices allows remote attackers to execute arbitrary code. The record identifies type confusion in the trustlet but does not disclose the incompatible resource, attacker-controlled input, or faulty operation. Reachability requires a TEEGRIS-based Samsung device on an affected Android release, and successful exploitation executes code in the trustlet.

The record

CVE
CVE-2019-20586
Published
Mar 24, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-843
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

10.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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