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CVE-2025-52908: Critical Vulnerability in Samsung Exynos Firmware

CVE-2025-52908 is a critical vulnerability affecting the Wi-Fi driver in several Samsung Exynos processors, leading to a buffer overflow. Organizations must prioritize patching to mitigate potential risks.

CRITICALCVSS 9.8 · Published April 7, 2026

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CVE-2025-52908 is a critical vulnerability discovered in the Wi-Fi driver of various Samsung Mobile Processors and Wearable Processors, including Exynos models 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. This issue arises from the incorrect handling of the NL80211 vendor command, which leads to a buffer overflow through a specific ioctl message. With a CVSS score of 9.8, the severity of this vulnerability is particularly alarming for organizations utilizing these processors.

Risk to organizations includes potential unauthorized access and control over affected devices, given the high impact on confidentiality, integrity, and availability. The vulnerability allows attackers to exploit the network attack vector with low complexity and no required privileges or user interaction, making it particularly dangerous.

Currently, there are no known exploits in the wild, and the vulnerability has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, given the critical nature of this vulnerability, organizations should prioritize patching immediately to mitigate potential risks.

This vulnerability affects a range of Samsung Exynos firmware versions, and if left unaddressed, it could lead to significant security incidents in networked environments.

Vulnerability Details

The vulnerability is classified under CWE-120, which pertains to buffer errors. It has a CVSS v3.1 score of 9.8, indicating a critical severity level. The affected products include various Exynos firmware versions, with the vulnerability published on April 7, 2026.

Technical Analysis

The root cause of CVE-2025-52908 is an improper handling of the NL80211 vendor command within the Wi-Fi driver. This flaw enables attackers to send specially crafted ioctl messages that result in a buffer overflow. The attack vector is network-based, with low attack complexity, and does not require any privileges or user interaction to exploit. The impacts include high confidentiality, integrity, and availability risks.

Risk & Impact Analysis

Organizations that deploy devices utilizing the affected Exynos processors face significant risks due to potential exploitation of this vulnerability. The blast radius is extensive, as it could allow attackers to compromise a wide range of devices within a network, leading to data breaches and unauthorized access. Given the critical CVSS score and the nature of the vulnerability, organizations should prioritize remediation as part of their security posture.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The following firmware versions are affected: Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. Organizations should assess their inventory for these versions to ensure timely remediation.

Mitigation & Remediation

Organizations should apply the latest firmware updates provided by Samsung to remediate this vulnerability. If immediate patching is not feasible, consider implementing network controls to limit exposure, such as segmenting affected devices. For effective security management, organizations may engage in penetration testing to identify other potential vulnerabilities.

Detection Guidance

Monitor logs for unusual network activity, specifically related to the NL80211 vendor command. Behavioral anomalies in Wi-Fi driver interactions should be closely examined, and network signatures should be established to detect potential exploit attempts.

AppSecure Threat Intelligence Insight

CVE-2025-52908 highlights a significant risk in networked environments, particularly for organizations utilizing Samsung Exynos processors. The vulnerability underscores the importance of regular security assessments and proactive vulnerability management practices. By understanding the potential implications of such vulnerabilities, organizations can better prepare for emerging threats and enhance their overall security posture. Continuous monitoring and evaluation of security measures are essential to mitigate similar risks in the future.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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