CVE-2021-25489

criticalknown exploitedcovered by 1 sourcefirst seen 2023-06-29

Actively exploited. CVE-2021-25489 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 improper input validation vulnerability within the modem interface driver that results in a format string bug leading to kernel panic.

CSIRTS triage

What: An improper input validation vulnerability within the modem interface driver results in a format string bug leading to kernel panic.
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.

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Exploitation outlook

Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 40% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalexploitedCVE-2021-25489: Samsung Mobile Devices Improper Input Validation Vulnerabilitycisa-kev · 2023-06-29

External references

NVD record for CVE-2021-25489

CVE.org record

CISA KEV catalog

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