CVE-2021-25487: Samsung Mobile Devices Out-of-Bounds Read Vulnerability

CVE-2021-25487 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2023-06-29

Samsung mobile devices contain an out-of-bounds read vulnerability in the modem interface driver's set_skb_priv() function due to insufficient boundary checking. This flaw can lead to arbitrary code execution via the dereference of an invalid function pointer.

Technologies: Samsung Mobile Devices. Vendors: Samsung.

Quick answers

Is CVE-2021-25487 exploited in the wild?
Yes. CVE-2021-25487 is known to be exploited in the wild, first recorded on 29 June 2023. Treat it as urgent.
How severe is CVE-2021-25487?
Critical severity, with a CVSS score of 7.8, published 29 June 2023.
Which products and versions are affected?
Samsung Android 8.1, 9.0, 10.0, 11.0 prior to SMR Oct-2021 Release 1.
Is there a fix for CVE-2021-25487?
A patch was published on 2021-10-01: SMR Oct-2021 Release 1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2021-25487 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2021-25487?
Check whether you run Samsung Mobile Devices. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Samsung Android 8.1, 9.0, 10.0, 11.0 prior to SMR Oct-2021 Release 1

Timeline

  • 2021-10-06: disclosed: NVD Published Date
  • 2021-10-01: patched: SMR Oct-2021 Release 1
  • 2023-06-29: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2023-06-29: exploited: Reported as exploited in the wild per CISA KEV entry date

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