CVE-2021-25487 Samsung CVE debrief

Who should care

Samsung mobile device administrators, enterprise mobility teams, IT support, and any organization managing Samsung devices should review exposure to this CVE. Users of potentially affected devices should install Samsung security updates as soon as they are available.

Technical summary

The supplied official records identify CVE-2021-25487 as an out-of-bounds read affecting Samsung Mobile Devices. Out-of-bounds read flaws are memory-safety issues that can expose unintended data or cause process instability. CISA’s KEV entry indicates the issue has been observed in exploitation and directs defenders to apply Samsung updates or discontinue use of the product if updates are unavailable.

Defensive priority

High — this vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, which warrants expedited remediation.

Recommended defensive actions

• Apply Samsung security updates per vendor instructions.
• Confirm which Samsung devices in your fleet are exposed to CVE-2021-25487.
• Prioritize remediation before the CISA KEV due date if devices remain in service.
• If updates are unavailable for any device, remove it from service or isolate it until a supported fix is available.
• Validate after patching that the latest Samsung security update is installed across managed devices.

Evidence notes

This debrief is based only on the supplied official metadata: CISA KEV identifies CVE-2021-25487 as an exploited Samsung Mobile Devices out-of-bounds read vulnerability and provides the remediation instruction to apply vendor updates or discontinue use if updates are unavailable. The supplied corpus does not include a CVSS score or affected version details, so those are not inferred here. Published and modified dates used for timing context are 2023-06-29 from the provided record.

Official resources