CVE-2025-3277 is a medium-severity vulnerability affecting the SQLite database system. This vulnerability allows an integer overflow to be triggered in SQLite’s `concat_ws()` function. When an overflow occurs, the resulting truncated integer is used to allocate a buffer. Consequently, when SQLite writes the resulting string to this buffer, it utilizes the original untruncated size, leading to a wild heap buffer overflow of approximately 4GB. This situation can result in arbitrary code execution, which poses a significant risk to organizations utilizing this technology.
The CVSS score for this vulnerability is 6.9, placing it in the medium-severity category. This rating indicates that while the vulnerability is not the highest risk, it is still critical to address it to prevent potential exploitation. The urgency of response should be factored into the organization's patch management cycle, especially considering the potential for arbitrary code execution.
Currently, the vulnerability has known exploits available, which increases its urgency for remediation. Organizations must ensure they are aware of the potential impacts of this vulnerability, particularly in networked environments, where the attack vector is classified as NETWORK.
Given the potential for arbitrary code execution, organizations should prioritize patching immediately. It is essential not only to patch the affected versions of SQLite but also to review any applications that rely on SQLite to ensure they are not vulnerable to this exploit.
Vulnerability Details
The official description states that an integer overflow can be triggered in SQLite’s `concat_ws()` function, which leads to a buffer allocation issue. This vulnerability falls under the CWE classifications of CWE-122 (Heap-based Buffer Overflow) and CWE-190 (Integer Overflow or Wraparound). The vulnerability was published on April 14, 2025, and affects the SQLite database system.
Organizations using SQLite versions between 3.44.0 and 3.49.1 are particularly at risk and should take immediate action to update to patched versions. The vulnerability has a CVSS score of 6.9, indicating medium severity due to its potential impacts on confidentiality, integrity, and availability.
Technical Analysis
The root cause of this vulnerability lies in the handling of integer values within the `concat_ws()` function. When an integer overflow occurs, it leads to a situation where a buffer is allocated based on an incorrect size. The attack vector is classified as NETWORK, meaning that it can be exploited remotely without any physical access to the system.
The attack complexity is low, as no special conditions or advanced skills are needed to exploit the vulnerability. Importantly, no privileges are required for an attacker to exploit this vulnerability, and user interaction is not necessary, allowing for broad potential exploitation.
The impact of this vulnerability is classified as having low confidentiality, integrity, and availability effects, yet the potential for arbitrary code execution raises significant concerns. This necessitates prompt action to mitigate the risk.
Risk & Impact Analysis
The real-world risk associated with CVE-2025-3277 is substantial, particularly for organizations that rely heavily on SQLite for data management. The potential for an attacker to leverage this vulnerability to execute arbitrary code poses a serious threat to system integrity.
Organizations should assess their exposure and consider the blast radius of this vulnerability. Systems allowing network access to SQLite databases are particularly vulnerable. The urgency for remediation is heightened due to the availability of known exploits and the potential impact on organizational operations.
Given the CVSS score of 6.9, organizations should address this issue in their priority patch cycle. Implementing updates should be done expeditiously to mitigate the risk of exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of SQLite from 3.44.0 to 3.49.1 are affected by this vulnerability. Organizations should ensure they are running the latest patched version to mitigate this risk.
Mitigation & Remediation
Organizations should prioritize patching SQLite to version 3.49.1 or later, where this vulnerability has been addressed. In cases where patching is not immediately possible, consider implementing workarounds, such as restricting access to the affected components and monitoring for unusual activity.
For further details on the security best practices and the importance of regular updates, organizations can refer to the penetration testing services.
Detection Guidance
Organizations should monitor logs for indicators of exploitation attempts, including denial of service events and unusual memory allocation patterns. Behavioral anomalies in applications using SQLite could also indicate attempts to exploit this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-3277 lies in its demonstration of how integer overflows can lead to severe vulnerabilities in widely used software components like SQLite. This vulnerability underscores the need for rigorous input validation and memory management practices in software development.
Security teams can learn from this situation by enhancing their vulnerability management programs and ensuring regular security assessments are conducted. To stay ahead of potential threats, organizations should integrate comprehensive vulnerability management programs into their security frameworks.
Finally, organizations can benefit from strategies that promote continuous security posture improvement. Implementing practices such as continuous penetration testing will help identify and mitigate vulnerabilities before they can be exploited.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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