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CVE-2025-54602: High Vulnerability in Samsung Exynos Firmware

CVE-2025-54602 is a high-severity vulnerability affecting Samsung's Exynos firmware, allowing for potential use-after-free attacks via improper synchronization. Immediate patching is crucial for organizations using affected devices.

HIGHCVSS 7 · Published April 6, 2026

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CVE-2025-54602 is a high-severity vulnerability affecting the Wi-Fi driver in various Samsung Mobile and Wearable Processors, including Exynos 980, 850, 1080, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. This vulnerability allows attackers to exploit improper synchronization on a global variable, leading to a use-after-free condition. An attacker can trigger a race condition by invoking an ioctl function concurrently from multiple threads.

The vulnerability has been assigned a CVSS score of 7, indicating a high severity level. This rating signifies a significant risk to organizations, as exploitation could result in unauthorized access to sensitive data, potential system crashes, or other malicious activities. The urgency for defenders is underscored by the need for immediate patching to prevent possible exploitation.

Currently, there are no known public exploits for this vulnerability, and it has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, organizations should remain vigilant and prioritize updating their systems to mitigate any risks associated with this vulnerability.

Organizations using affected Samsung firmware should address this issue in their priority patch cycle to ensure that they are not vulnerable to potential exploitation. The situation demands immediate attention to safeguard organizational assets and maintain system integrity.

Vulnerability Details

The CVE-2025-54602 vulnerability arises from a flaw in the synchronization mechanisms within the Wi-Fi driver of Samsung Exynos processors. This flaw allows for the exploitation of race conditions, which can lead to use-after-free scenarios. The CVSS score of 7 indicates the potential for high-impact outcomes, including confidentiality, integrity, and availability concerns.

Affected products include the Exynos 980, 850, 1080, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000 firmware versions. Organizations should refer to the vendor's advisory for specific patching guidance.

Technical Analysis

The root cause of CVE-2025-54602 stems from improper synchronization on a global variable within the Wi-Fi driver. This vulnerability has a local attack vector, meaning that an attacker must have local access to the vulnerable system to exploit it. The attack complexity is rated as high, requiring low privileges with no user interaction necessary.

In terms of impact, this vulnerability poses a high risk to confidentiality, integrity, and availability, as exploitation could lead to unauthorized data access and system instability.

Risk & Impact Analysis

Real-world deployment risks associated with CVE-2025-54602 are substantial, particularly for organizations utilizing Samsung Exynos processors in their mobile or wearable devices. The potential for exploitation through a race condition could result in significant data breaches or system disruptions.

The blast radius of this vulnerability extends to any systems using the affected firmware, emphasizing the importance of immediate remediation. Organizations should address this vulnerability based on its CVSS score, prioritizing patching to minimize the risk of exploitation.

Given the CVSS score of 7, organizations should address this vulnerability in their priority patch cycle. The urgency is heightened by the fact that while there are no confirmed exploits, the nature of the vulnerability leaves systems open to potential attacks.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected versions include the Samsung Exynos firmware for models 980, 850, 1080, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000. Organizations should ensure they are running the latest firmware versions provided by Samsung to mitigate this vulnerability.

Mitigation & Remediation

Organizations should prioritize patching affected devices immediately. Samsung has provided updates for the vulnerable firmware, which organizations must apply to secure their systems. For those unable to patch immediately, implementing configuration hardening and monitoring for any unusual activity is recommended.

For further guidance on remediation, organizations can consult resources such as the penetration testing services offered by AppSecure to evaluate their security posture.

Detection Guidance

Organizations should monitor logs for indicators of exploitation, such as failed ioctl function calls or unusual thread activity that may suggest attempts to exploit the race condition.

AppSecure Threat Intelligence Insight

CVE-2025-54602 represents a significant risk for organizations using Samsung Exynos processors, emphasizing the need for proactive vulnerability management. This incident highlights the importance of robust synchronization practices in software development and the need for regular security assessments to identify potential weaknesses.

Organizations should consider implementing a comprehensive vulnerability management program to ensure timely detection and remediation of vulnerabilities.

Furthermore, organizations can benefit from regular security assessments, including penetration testing methodologies that help identify and mitigate risks before they can be exploited.

In conclusion, organizations must stay informed about vulnerabilities like CVE-2025-54602 and take rigorous steps to secure their systems against potential threats.

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

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