Findings

CVE-2021-25487

Samsung Mobile Devices Out-of-Bounds Read Vulnerability

Published Oct 6, 2021 · updated Jun 16, 2026 · samsung android

Samsung mobile devices contain an out-of-bounds read vulnerability within the modem interface driver due to a lack of boundary checking of a buffer in set_skb_priv(), leading to remote code execution by dereference of an invalid function pointer.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 6, 2021 · Catalog

    Detected

    Samsung mobile devices contain an out-of-bounds read vulnerability within the modem interface driver due to a lack of boundary checking of a buffer in set_skb_priv(), leading to remote code execution by dereference of an invalid function pointer.

  2. Jun 29, 2023 · CISA KEV

    Known exploited

    Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

  3. Jul 20, 2023 · CISA KEV

    Remediation due

    Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

  4. Jun 16, 2026 · Catalog

    Updated

    Samsung mobile devices contain an out-of-bounds read vulnerability within the modem interface driver due to a lack of boundary checking of a buffer in set_skb_priv(), leading to remote code execution by dereference of an invalid function pointer.

Required action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

CISA due date Jul 20, 2023

Affected

  • cpe samsung/android8.1
  • cpe samsung/android9.0
  • vendor Samsung Mobile Devicesversion unspecified

Sources

  • CISA KEVCVE-2021-25487

    Samsung mobile devices contain an out-of-bounds read vulnerability within the modem interface driver due to a lack of boundary checking of a buffer in set_skb_priv(), leading to remote code execution by dereference of an invalid function pointer.

    cisa.gov
  • CVE.orgCVE-2021-25487

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2021-25487

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDCVE-2021-25487

    Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer.

    nvd.nist.gov

References

CVE-2021-25487 · ZeroDay Findings