CVE-2020-10839

Physical Factory Reset Protection bypass via SIM card

Published Mar 24, 2020 · Updated Aug 4, 2024

Authentication bypass in Samsung mobile devices running Android 8.x, 9.0, or 10.0 allows physically proximate attackers to defeat FRP. Samsung discloses only that a SIM card bypasses Factory Reset Protection and has not published the affected component or failed validation step. Physical possession of an affected device and a SIM card are required, after which the reset device can be activated without the account verification FRP is intended to enforce.

CVSS severity6.8
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Samsung mobile devices running Android 8.x, 9.0, or 10.0 allows physically proximate attackers to defeat FRP. Samsung discloses only that a SIM card bypasses Factory Reset Protection and has not published the affected component or failed validation step. Physical possession of an affected device and a SIM card are required, after which the reset device can be activated without the account verification FRP is intended to enforce.

The record

CVE
CVE-2020-10839
Published
Mar 24, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
physical
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 vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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