CVE-2021-25487
Samsung Mobile Devices Out-of-Bounds Read Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
CISA notes
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10; https://nvd.nist.gov/vuln/detail/CVE-2021-25487
Description
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.
Severity
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:NExploitation Context
as of October 13, 2026- CISA added CVE-2021-25487 to the KEV catalog 631 days after its CVE record was published. The median for entries added in 2023 is 12 days.
- It is one of 15 Samsung entries in the CISA KEV catalog, and one of 8 added in 2023.
- Its current EPSS score (0.6%) is higher than that of 1% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Samsung Mobile | Samsung Mobile Samsung Mobile Devices | O(8.1), P(9.0), Q(10.0), R(11.0) to <SMR Oct-2021 Release 1 |
References
1 LinksRecord Details
More from Samsung
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
Samsung Mobile Devices Improper Access Control Vulnerability
Samsung Mobile Devices Insertion of Sensitive Information Into Log File Vulnerability
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
Related
Tool categories
CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.