# CVE-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.

- Page: https://www.vulneraibility.com/cve/CVE-2021-25487
- CVSS: 7.3
- Known exploited: yes, in CISA KEV since 2023-06-29; CISA due date 2023-07-20
- EPSS: 0.64% (percentile 50.9)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-04)
- Weakness: CWE-125
- Published: 2021-10-06

## Affected versions

- Samsung Mobile Samsung Mobile Devices: affected >= O(8.1), P(9.0), Q(10.0), R(11.0) and < SMR Oct-2021 Release 1

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25487

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.