CVE-2025-14813 represents a critical security vulnerability related to the use of a broken or risky cryptographic algorithm in the BC-JAVA library developed by Legion of the Bouncy Castle Inc. Specifically, the GOSTCTR implementation is unable to correctly process more than 255 blocks, raising significant security concerns. The CVSS score for this vulnerability is 9.3, indicating its critical nature and the potential for severe impact on affected systems.
Risk to organizations includes high confidentiality and integrity impacts, which could lead to unauthorized access or manipulation of sensitive data. Given the critical severity and the potential exploitation of this vulnerability, organizations should prioritize patching immediately. The vulnerability was published on April 15, 2026, and is currently awaiting analysis.
As of now, there are no known exploits confirmed for this vulnerability, but the attack vector is classified as local, with low attack complexity, meaning that it could be leveraged by an attacker with local access to the system. Organizations should be proactive in assessing their systems for this vulnerability.
To mitigate the risks associated with CVE-2025-14813, it is crucial for organizations to implement the necessary patches and updates as soon as they become available. The urgency for remediation cannot be understated, given the potential consequences of exploitation.
Vulnerability Details
The official description of CVE-2025-14813 highlights the use of a broken or risky cryptographic algorithm in the BC-JAVA library's core modules. Specifically, the vulnerability is tied to the G3413CTRBlockCipher program files, with the GOSTCTR implementation exhibiting the inability to process more than 255 blocks correctly. This vulnerability affects BC-JAVA versions from 1.59 prior to 1.84.
The CVSS score of 9.3 categorizes this vulnerability as critical, emphasizing the high potential for confidentiality and integrity impacts, while availability remains unaffected. The CWE classification associated with this vulnerability is CWE-327, which relates to the use of a broken or risky cryptographic algorithm.
Technical Analysis
The root cause of this vulnerability lies in the flawed implementation of the GOSTCTR algorithm, which fails to handle block processing beyond a certain threshold. The attack vector is classified as local, indicating that an attacker must have access to the system to exploit this vulnerability.
The attack complexity is rated as low, suggesting that exploiting this vulnerability does not require significant effort or specialized knowledge. Importantly, no privileges are required to exploit this vulnerability, and user interaction is not necessary.
The impact on confidentiality and integrity is classified as high, indicating that sensitive information could be compromised, while availability remains unaffected. Organizations should be vigilant in monitoring and addressing this vulnerability to prevent potential exploitation.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-14813 is significant, particularly for organizations utilizing the BC-JAVA library. Given the critical nature of this vulnerability, the potential blast radius for organizations could be extensive, especially if sensitive data is processed through the affected algorithm.
Organizations should assess their use of BC-JAVA and prioritize remediation efforts. The urgency for patching is underscored by the critical CVSS score, indicating that organizations must act swiftly to mitigate the risks posed by this vulnerability.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects all BC-JAVA versions from 1.59 prior to 1.84. Organizations using these versions should assess their systems and apply necessary updates as soon as they become available to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should monitor for patches or updates related to CVE-2025-14813 and apply them as soon as possible. If a patch is not yet available, organizations should implement workarounds where feasible. Ensuring that systems using BC-JAVA are configured securely and monitored for unusual activity can also help mitigate potential risks.
For ongoing security assurance, organizations may consider engaging in penetration testing to identify any other vulnerabilities that may be present.
Detection Guidance
To detect potential exploitation of CVE-2025-14813, organizations should monitor logs for any unusual cryptographic operations or errors related to the GOSTCTR implementation. Behavioral anomalies during cryptographic processing should also be flagged for investigation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-14813 lies in the increasing reliance on cryptographic algorithms in software applications. As vulnerabilities in cryptography can lead to severe data breaches, it is crucial for security teams to prioritize robust cryptographic practices.
This vulnerability represents a pattern of risks associated with cryptographic implementations, emphasizing the need for thorough testing and validation before deployment. Organizations should take lessons from this incident to enhance their cryptographic security measures.
For further reading on best practices in cryptographic security, organizations can refer to secure coding practices, which can help prevent similar vulnerabilities in the future.
Additionally, regular engagement in penetration testing methodologies can aid in identifying weaknesses in cryptographic implementations.
Organizations should also consider strategic assessments of their systems' cryptographic dependencies to ensure compliance with best practices and reduce the risk of future vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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