Hazard

Is CVE-2021-25487 being exploited?

Confirmed exploited in the wild

CISA has evidence of active exploitation. This is not theoretical risk — someone has already used it against someone.

Samsung Mobile Devices Out-of-Bounds Read Vulnerability

Samsung · Mobile Devices

CVSS 7.3 EPSS 0.6% no public exploit indexed Fix deadline passed 20 July 2023

What it is

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.

Why we say that

  • CISA's federal remediation deadline (2023-07-20) has passed
  • Listed in the CISA Known Exploited Vulnerabilities catalogue

Every line above comes from a named public source. Where the evidence is thin, we say so rather than inventing confidence — see methodology.

What to do

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

What it costs when this goes wrong

This is where UK enforcement meets the vulnerability record. Where an unfixed vulnerability leads to a breach, the ICO treats it as a security failure under UK GDPR. Recent cases:

All UK cases caused by unpatched software →