CVE-2025-49495
Published: 05 January 2026
Summary
CVE-2025-49495 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Samsung Exynos 1380 Firmware. Its CVSS base score is 8.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 3.5th 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-2025-49495, published on 2026-01-05, is a buffer overflow vulnerability (CWE-120) in the WiFi driver of Samsung Mobile Processor Exynos 1380, 1480, 2400, and 1580. The flaw stems from mishandling an NL80211 vendor command, resulting in a CVSS v3.1 base score of 8.4 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
A local attacker can exploit this vulnerability with low attack complexity, requiring no privileges or user interaction. Exploitation enables high-impact consequences, including unauthorized access to sensitive data, modification of system integrity, and disruption of availability, potentially leading to full device compromise.
Samsung Semiconductor provides product security updates addressing CVE-2025-49495, detailed at https://semiconductor.samsung.com/support/quality-support/product-security-updates/ and https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-49495/.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-0814
Vulnerability details
An issue was discovered in the WiFi driver in Samsung Mobile Processor Exynos 1380, 1480, 2400, 1580. Mishandling of an NL80211 vendor command leads to a buffer overflow.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Local buffer overflow in WiFi driver (no privileges/UI required) directly enables kernel-level privilege escalation to achieve full device compromise.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly mitigates the buffer overflow by requiring timely application of Samsung's product security updates that patch the WiFi driver flaw.
Requires validation of NL80211 vendor command inputs to the WiFi driver, preventing buffer overflows from mishandled data.
Implements memory protections like ASLR and non-executable stacks to block exploitation of the buffer overflow in the Exynos WiFi driver.