The CVE entry CVE-2025-13923 was reserved on December 2, 2025, by GitLab but subsequently marked as REJECTED, indicating that the vulnerability either does not exist, was a duplicate, or was otherwise invalidated. There are no technical details, affected software versions, or exploit information provided. The lack of a CVSS score and absence of patch or mitigation guidance further suggest that this is not an active or confirmed vulnerability. The REJECTED state typically means that the CVE identifier should not be treated as a valid security issue. Without concrete data, it is impossible to analyze the nature, mechanism, or impact of the supposed vulnerability.

Since CVE-2025-13923 is marked as REJECTED and lacks any technical or exploit information, there is no known impact on confidentiality, integrity, or availability. European organizations are not at risk from this entry as it does not represent a valid or exploitable vulnerability. No operational or strategic impacts can be assessed due to the absence of credible threat data.

No specific mitigation is necessary for CVE-2025-13923 given its REJECTED status and lack of technical details. Organizations should continue to follow standard security best practices and monitor trusted vulnerability sources for valid and actionable advisories. It is advisable to disregard this CVE in vulnerability management processes unless new, verified information is published.