CVE-2025-57835 is a high-severity vulnerability discovered in the RRC of various Samsung Exynos processors, including models 980, 990, 850, 1080, 2100, and others. This vulnerability allows improper memory initialization, leading to illegal memory access and potential system crashes through malformed RRCReconfiguration messages. The vulnerability has a CVSS score of 7.5, indicating a high level of severity that organizations should take seriously.
Organizations utilizing affected Samsung products must recognize the real-world implications of CVE-2025-57835. The risk to organizations includes significant operational disruptions due to system crashes, which could impact various applications relying on these processors. Given the increasing reliance on mobile and wearable devices, the urgency for defenders to patch this vulnerability is critical.
As of now, there are no known exploits or public proof-of-concept (PoC) for this vulnerability. Nevertheless, organizations should treat this vulnerability with high priority in their patch management cycles. Organizations should prioritize patching immediately to mitigate potential risks.
The publication date of this CVE is April 6, 2026, highlighting the need for timely action from affected organizations. Failure to address this vulnerability could lead to severe consequences, including unauthorized access and system instability.
Vulnerability Details
The vulnerability is classified under CWE-20, which pertains to improper input validation. Specifically, the improper memory initialization in the RRC can lead to crashes, which is a critical issue for any processing environment. This vulnerability affects a range of Samsung Exynos processors, including models such as Exynos 850, 990, and others detailed in the CVE entry.
The CVSS score of 7.5 indicates a high severity, with an attack vector of NETWORK and low attack complexity, meaning that attackers do not require extensive resources or specific conditions to exploit this vulnerability. The availability impact is rated high, while confidentiality and integrity impacts are rated as none.
Technical Analysis
The root cause of CVE-2025-57835 is improper memory initialization within the RRC of affected Samsung Exynos processors. This vulnerability can be exploited via a malformed RRCReconfiguration message transmitted over the network. The attack complexity is categorized as low, and no user interaction is required, allowing remote attackers to trigger the vulnerability without needing user intervention.
The privileges required to exploit this vulnerability are none, and the impact on availability is significant, as it can cause complete system crashes. Organizations must be aware of the potential for downtime and instability in their systems due to this vulnerability.
In terms of confidentiality and integrity, this vulnerability does not pose a direct risk; however, the availability impact remains critical. Organizations should conduct thorough assessments of their systems to identify and mitigate potential risks associated with this vulnerability.
Risk & Impact Analysis
The real-world risk of CVE-2025-57835 is significant, as it affects a wide range of Samsung Exynos processors utilized in various devices. Organizations using these processors must recognize the potential for severe disruptions due to system crashes, which can hinder operations and degrade user experience.
The blast radius for this vulnerability is notable, affecting not only individual devices but potentially impacting connected systems and networks. Given the prevalence of Samsung processors in mobile and wearable technology, the urgency for organizations to prioritize remediation is high.
Considering the CVSS score and the absence of known exploits, organizations should assess their risk based on deployment scenarios and prioritize patching within their security update cycles. Organizations should address in priority patch cycle to mitigate the risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include various firmware versions for the Exynos processors, such as Exynos 980, 990, 850, 1080, 2100, and Modem firmware versions 5123, 5300, and 5400. Organizations should ensure that all versions prior to vendor patch are updated to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should prioritize remediation for CVE-2025-57835 by applying the latest firmware updates provided by Samsung. Ensuring that devices are running the patched versions of the Exynos firmware is critical to preventing potential system crashes.
If patches are not immediately available, organizations should consider implementing network controls to restrict the exposure of vulnerable devices to potential attackers. Additionally, monitoring for unusual system behavior can help identify attempts to exploit this vulnerability.
For further assistance in security assessments, organizations may want to explore professional services such as penetration testing to validate their security posture against this and other vulnerabilities.
Detection Guidance
Organizations should monitor logs for indicators of abnormal system behavior that could suggest exploitation attempts of CVE-2025-57835. Behavioral anomalies, such as unexpected system crashes or restarts, should be investigated promptly.
It is also advisable to implement network signatures to detect malformed RRCReconfiguration messages that could exploit this vulnerability. Regular system audits can help identify any unauthorized changes or anomalies in device configurations.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-57835 highlights the importance of proactive security measures in the development and deployment of firmware solutions. This vulnerability exemplifies common weaknesses that can have wide-reaching impacts across devices.
Security teams should learn from this incident to enhance their testing practices and ensure that memory initialization processes are thoroughly vetted. Organizations should also prioritize ongoing training and awareness programs to ensure that development teams are cognizant of potential vulnerabilities.
For organizations seeking to strengthen their security posture, resources such as penetration testing methodology and vulnerability management programs can provide valuable insights into effective mitigation strategies.
Additionally, engaging in comprehensive security assessments like API penetration testing can help identify similar weaknesses in organizational infrastructures.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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