CVE-2020-12745Network attack vector

Clipboard disclosure via USSD lockscreen bypass

Published May 11, 2020 · Updated Aug 4, 2024

Authentication bypass in Samsung mobile devices with Q(10.0) allows remote attackers to access clipboard content via USSD. The lockscreen USSD dialog fails to enforce the locked-state protection check before exposing clipboard data. Exploitation requires a USSD request reaching the handset, and the bounded impact is disclosure of clipboard contents without documented ability to modify data or interrupt service.

CVSS severity7.5
High
EPSS probability0.43%
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 with Q(10.0) allows remote attackers to access clipboard content via USSD. The lockscreen USSD dialog fails to enforce the locked-state protection check before exposing clipboard data. Exploitation requires a USSD request reaching the handset, and the bounded impact is disclosure of clipboard contents without documented ability to modify data or interrupt service.

The record

CVE
CVE-2020-12745
Published
May 11, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 11, 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

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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-862Missing Authorization
T1005Data from Local System

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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