CVE-2020-10837Network attack vector

Arbitrary code execution via unchecked buffer length

Published Mar 24, 2020 · Updated Aug 4, 2024

Stack overflow in the Esecomm Trustlet on selected Samsung Android 9.0 and 10.0 TEEGRIS devices allows attackers to execute arbitrary code. The Trustlet accepts a buffer length without proper validation, allowing an oversized buffer to overwrite its stack. Samsung has not disclosed how attackers reach the Trustlet or the execution context gained, and the issue applies only to selected TEEGRIS devices.

CVSS severity9.8
Critical
EPSS probability0.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in the Esecomm Trustlet on selected Samsung Android 9.0 and 10.0 TEEGRIS devices allows attackers to execute arbitrary code. The Trustlet accepts a buffer length without proper validation, allowing an oversized buffer to overwrite its stack. Samsung has not disclosed how attackers reach the Trustlet or the execution context gained, and the issue applies only to selected TEEGRIS devices.

The record

CVE
CVE-2020-10837
Published
Mar 24, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-787Out-of-bounds Write

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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