CVE-2025-0695 is classified as an Allocation of Resources Without Limits or Throttling vulnerability affecting Cesanta Frozen versions less than 1.7. This vulnerability allows an attacker to induce a crash of the component embedding the library by supplying a maliciously crafted JSON as input. With a CVSS score of 5.3, this vulnerability is categorized as medium severity, indicating that it poses a moderate risk to affected systems.
Risk to organizations includes potential service disruption due to crashes if the vulnerable component is exploited. Given the nature of the vulnerability, attackers may leverage it to affect the availability of services relying on the Cesanta Frozen library. Organizations should prioritize patching immediately to mitigate this risk.
Currently, there are no known exploits associated with this vulnerability, and it is not actively exploited in the wild. However, the potential for exploitation remains a concern, especially if the vulnerability is not addressed in a timely manner. Organizations should monitor their systems and apply updates as they become available.
Given the medium severity of CVE-2025-0695, organizations should address this vulnerability in their priority patch cycle to ensure the safety and availability of their services.
Vulnerability Details
This vulnerability allows an attacker to induce a crash of the component embedding the library by supplying a maliciously crafted JSON as input. The affected component is Cesanta Frozen versions prior to 1.7. The vulnerability was published on January 27, 2025, and has been classified under CWE-770.
The CVSS score of 5.3 indicates a medium severity, with a low attack complexity and no privileges required for exploitation. The attack vector is network-based, meaning an attacker can exploit this vulnerability remotely.
Technical Analysis
The root cause of CVE-2025-0695 lies in the lack of resource allocation limits or throttling mechanisms within Cesanta Frozen. This allows attackers to send an excessive amount of data, leading to a denial of service condition.
The attack vector is network-based, and the attack complexity is low, meaning that an attacker does not require significant effort to exploit this vulnerability. No user interaction is required, making it easier for an attacker to initiate the exploit.
The impact on availability is classified as low, as the vulnerability may lead to component crashes without compromising confidentiality or integrity.
Risk & Impact Analysis
Real-world deployment risk includes service disruptions that can arise from exploiting this vulnerability. Organizations relying on Cesanta Frozen for critical functionalities may experience significant downtime, impacting their operations, reputation, and customer trust.
The blast radius potential is moderate, as the vulnerability primarily affects systems that incorporate the vulnerable version of Cesanta Frozen. However, due to its network-based nature, it can be exploited remotely, increasing the risk.
Organizations should assess their exposure to this vulnerability based on their use of Cesanta Frozen components and prioritize remediation accordingly. Urgency for patching should be assessed in relation to the CVSS score and organizational risk tolerance.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch.
Mitigation & Remediation
Organizations should update to the latest version of Cesanta Frozen to mitigate this vulnerability. If a patch is not immediately available, consider implementing input validation and sanitization measures for JSON inputs. Additionally, monitor system logs for unusual activity that may indicate attempted exploitation.
For further guidance on penetration testing and security assessments, organizations can explore penetration testing services that provide comprehensive evaluations of their security posture.
Detection Guidance
Organizations should monitor logs for indicators of abnormal JSON input patterns that could signify an attempt to exploit this vulnerability. Behavioral anomalies such as unexpected crashes or performance degradation in services utilizing the Cesanta Frozen library should also be investigated.
AppSecure Threat Intelligence Insight
CVE-2025-0695 represents a growing trend of vulnerabilities related to resource management in software libraries. Security teams should focus on incorporating rigorous input validation mechanisms to mitigate similar risks in the future. Additionally, monitoring system behaviors in real-time can provide early detection of exploitation attempts.
For insights into effective security measures, organizations can refer to vulnerability management program design, penetration testing methodology, and AI security best practices that can help strengthen defenses against evolving threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)