CVE-2025-53966
Buffer overflow in Exynos NL80211 IOCTL handling.
Is CVE-2025-53966 being exploited?
Not confirmed. CVE-2025-53966 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2025-53966?
CVE-2025-53966 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-53966?
Yes. A fix has been recorded for CVE-2025-53966. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-53966 affect?
CVE-2025-53966 affects Samsung Exynos 1380, Exynos 1480, Exynos 2400, Exynos 1580. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-53966?
Apply firmware updates when released; monitor advisories from Samsung.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local kernel/firmware code execution via crafted NL80211 IOCTL; device compromise possible.
Patch when possible