CVE-2021-25337 Samsung CVE debrief

Who should care

Security teams responsible for Samsung mobile devices, mobile device management (MDM) administrators, and any organization that allows Samsung devices to access corporate data, apps, or identity services.

Technical summary

The available public record identifies the issue only at a high level: an improper access control flaw affecting Samsung mobile devices. The CISA KEV listing indicates the vulnerability is known to be exploited in the wild, but the supplied corpus does not include affected model ranges, attack prerequisites, or technical exploit details. Use the CVE record, NVD entry, and Samsung’s update guidance to confirm exposure and remediation steps.

Defensive priority

High. KEV inclusion means the vulnerability has been observed as exploited, so remediation should be prioritized over routine maintenance windows.

Recommended defensive actions

• Apply Samsung updates according to vendor instructions as soon as possible.
• Inventory Samsung mobile devices to determine which models and OS builds are exposed.
• Use MDM or endpoint management tooling to verify patch status and enforce compliance.
• Restrict or monitor access from unpatched devices to sensitive applications and data until remediation is complete.
• Track CISA KEV status and vendor advisories for any updated guidance or affected-version details.

Evidence notes

CISA’s Known Exploited Vulnerabilities catalog lists CVE-2021-25337 as “Samsung Mobile Devices Improper Access Control Vulnerability,” with dateAdded 2022-11-08 and dueDate 2022-11-29, and notes to apply updates per vendor instructions. The CVE record and NVD entry supplied in the corpus corroborate the same vulnerability name and vendor/product mapping. The corpus does not provide CVSS, affected versions, or technical exploitation details.

Official resources