CVE-2021-25487
Actively exploited. CVE-2021-25487 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-06-29) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
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.
CSIRTS triage
- What
- An out-of-bounds read vulnerability within the modem interface driver can lead to remote code execution.
- Who is affected
- Users of affected Samsung mobile devices.
- Urgency
- Immediate action is required due to the critical severity and confirmed exploitation.
- Action
- Update to the latest firmware from Samsung.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2021-25487
Get an email if CVE-2021-25487 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 46% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2021-25487: Samsung Mobile Devices Out-of-Bounds Read Vulnerabilitycisa-kev · 2023-06-29
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2021-25487)