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VulnerabilityPublished

CVE-2025-20989: Samsung Mobile Devices · Information Exposure

Affects Samsung Mobile DevicesSource CVE Database V5

0

Not known to be exploited · CVSS 5.2 Medium.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 3.1 base score
5.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Jun 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 26 Oct 2026.

What to do

AI-suggested

European organizations should prioritize the following mitigation steps: 1) Ensure timely deployment of the SMR May-2025 Release 1 or subsequent security updates from Samsung that address this vulnerability. 2) Restrict local privileged access on Samsung Mobile Devices by enforcing strict device management policies, including disabling unnecessary root or administrative privileges and using Mobile Device Management (MDM) solutions to monitor and control device configurations. 3) Implement strong physical security controls to prevent device theft or unauthorized physical access. 4) Educate users and administrators about the risks of local privilege escalation and encourage reporting of suspicious device behavior. 5) Consider additional biometric authentication safeguards such as multi-factor authentication (MFA) to reduce reliance on fingerprint authentication alone. 6) Monitor for unusual authentication attempts or anomalies that could indicate exploitation attempts. 7) Coordinate with Samsung support channels for official patches and advisories and validate the integrity of updates before deployment.

Description

Improper logging in fingerprint trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to get a hmac_key.

References

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