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Vulnerabilities

Vulnerability · CVE-2025-20937

Out-of-bounds write in Keymaster trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

Published May 7, 2025 · catalog updated Feb 26, 2026 · Samsung Mobile Samsung Mobile Devices

Check this week

CVE-2025-20937 is not in CISA KEV. FIRST estimates a 18.00% chance of exploitation in the next 30 days. Check whether you run Samsung Mobile Samsung Mobile Devices.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
18.00%
Remediation
Advisory link
Affected products
vendor Samsung Mobile Samsung Mobile Devices patch: SMR May-2025 Release in Android 13, 14, 15

Out-of-bounds write in Keymaster trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Samsung Mobile Samsung Mobile Devices patch: SMR May-2025 Release in Android 13, 14, 15patch: SMR May-2025 Release in Android 13, 14, 15

How to fix CVE-2025-20937

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-20937 is not in CISA KEV. FIRST estimates a 18.00% chance of exploitation in the next 30 days. Check whether you run Samsung Mobile Samsung Mobile Devices.

Which versions are affected?

Compare what you have installed with Samsung Mobile Samsung Mobile Devices patch: SMR May-2025 Release in Android 13, 14, 15 patch: SMR May-2025 Release in Android 13, 14, 15. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 18.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 7, 2025 · EUVD

    Detected

    Out-of-bounds write in Keymaster trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

  2. Feb 26, 2026 · EUVD

    Updated

    Out-of-bounds write in Keymaster trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

Sources

  • CVE.orgVulnerability recordCVE-2025-20937

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-13708

    Out-of-bounds write in Keymaster trustlet prior to SMR May-2025 Release 1 allows local privileged attackers to write out-of-bounds memory.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.