CVE-2023-30671

Application downgrade via faulty ADB installation logic

Published Jul 6, 2023 · Updated Oct 24, 2024

Logic error in ADB package installation on Samsung Mobile Devices running Android 12 or 13 allows local users to downgrade an installed application. The installer accepts a lower-version package through ADB because its downgrade-prevention logic is faulty; Samsung has not disclosed the affected function. Exploitation requires local ADB access with high privileges and permits replacement of an application with an older version.

CVSS severity6.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Logic error in ADB package installation on Samsung Mobile Devices running Android 12 or 13 allows local users to downgrade an installed application. The installer accepts a lower-version package through ADB because its downgrade-prevention logic is faulty; Samsung has not disclosed the affected function. Exploitation requires local ADB access with high privileges and permits replacement of an application with an older version.

The record

CVE
CVE-2023-30671
Published
Jul 6, 2023
Updated
Oct 24, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 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 versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile DevicesAffected versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.3Samsung MobileCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
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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