CVE-2025-52909
Published: 07 April 2026
Summary
CVE-2025-52909 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Samsung Exynos 1280 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 38.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
CVE-2025-52909 is a buffer overflow vulnerability (CWE-120) in the Wi-Fi driver of Samsung Mobile Processor and Wearable Processor models Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. The issue stems from incorrect handling of the NL80211 vendor command, which can be triggered via a certain ioctl message; this represents issue 2 of 2 in the affected component. The vulnerability carries a CVSS v3.1 base score of 9.8, reflecting its critical severity.
Attackers can exploit this vulnerability remotely over the network with low complexity, requiring no privileges, no user interaction, and no change in scope. Successful exploitation leads to high impacts on confidentiality, integrity, and availability, potentially allowing arbitrary code execution or system compromise on affected devices.
Samsung Semiconductor has published product security updates addressing this vulnerability, with details available on their quality support pages, including a dedicated page for CVE-2025-52909. Security practitioners should consult these advisories for patch availability and deployment guidance specific to impacted Exynos processors.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-209267
Vulnerability details
An issue was discovered in the Wi-Fi driver in Samsung Mobile Processor and Wearable Processor Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. Incorrect Handling of the NL80211 vendor command leads to a buffer overflow via…
more
a certain ioctl message, issue 2 of 2.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow in Wi-Fi driver allows unauthenticated remote code execution over network with no user interaction, directly enabling exploitation of a network-exposed component.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Flaw remediation directly addresses the buffer overflow vulnerability by applying Samsung's published security updates to the affected Exynos Wi-Fi drivers.
Information input validation prevents buffer overflows by ensuring proper bounds checking and handling of NL80211 vendor commands and ioctl messages in the Wi-Fi driver.
Memory protection mechanisms such as address space layout randomization and stack canaries mitigate exploitation of the buffer overflow for arbitrary code execution in the Wi-Fi driver.