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CVE-2025-21016VulnerabilityPublished

CVE-2025-21016: Samsung Mobile Devices · Improper Access Control

Affects Samsung Mobile DevicesSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

AI-suggested

European organizations should implement the following specific mitigation strategies: 1) Inventory and audit Samsung mobile devices to identify any running Chinese Android firmware versions 13 through 16, especially those imported or used by employees with international device procurement. 2) Enforce strict device management policies that restrict physical access to corporate mobile devices, minimizing the risk of local exploitation. 3) Monitor Samsung's official security advisories and promptly apply the SMR August 2025 Release 1 update or later patches once available to remediate the vulnerability. 4) Employ Mobile Device Management (MDM) solutions to enforce firmware version compliance and restrict installation of unauthorized firmware or software. 5) Educate users about the risks of using devices with non-standard or region-specific firmware and discourage the use of devices with Chinese Android builds unless properly secured. 6) For high-security environments, consider additional endpoint protection solutions that can detect anomalous API usage or privilege escalation attempts on mobile devices. 7) Coordinate with Samsung support channels to confirm patch availability and deployment timelines for affected devices in European markets.

Description

Improper access control in PkgPredictorService prior to SMR Aug-2025 Release 1 in Chinese Android 13, 14, 15 and 16 allows local attackers to use the privileged APIs.

References

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