CVE-2025-20990

Local device-identifier disclosure via unprotected device node

Published Aug 6, 2025 · Updated Aug 6, 2025

Improper access control in Samsung Mobile Devices on Android 13 through 15 allows local users to read a device identifier. A system device node lacks the access control needed to block unauthorized reads, although Samsung has not identified the node or released code-level details. Local execution on an affected device is required, and the documented consequence is limited to disclosure of the device identifier.

CVSS severity4.0
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Samsung Mobile Devices on Android 13 through 15 allows local users to read a device identifier. A system device node lacks the access control needed to block unauthorized reads, although Samsung has not identified the node or released code-level details. Local execution on an affected device is required, and the documented consequence is limited to disclosure of the device identifier.

The record

CVE
CVE-2025-20990
Published
Aug 6, 2025
Updated
Aug 6, 2025
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
T1082
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2025Record 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 privilegesunauthenticated

What is affected?

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

Published CVSS scores

4.0Samsung MobileCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1082System Information Discovery

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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