CVE-2021-30964 in macOS
Summary
by MITRE • 08/25/2021
** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by the CVE program. Notes: none.
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Analysis
by VulDB Data Team • 03/08/2026
This CVE entry represents a withdrawn candidate number from the Common Vulnerabilities and Exposures program, indicating that the vulnerability description was formally rejected or removed from the official database. Such withdrawals typically occur when the initial assessment proves inaccurate, insufficiently detailed, or when the reported issue does not meet the criteria for a formal CVE designation. The absence of ConsultIDs and notes suggests that no alternative vulnerability identification was provided, nor were there supporting references to establish the legitimacy of the originally reported security concern.
The withdrawal of CVE candidates serves as an important quality control mechanism within cybersecurity frameworks, ensuring that only verified and substantiated vulnerabilities receive official identification numbers. This process helps maintain the integrity of vulnerability databases that security professionals rely upon for threat assessment and remediation planning. When a candidate is withdrawn, it often indicates either a misclassification of the reported issue or the discovery that the problem does not constitute a valid security vulnerability according to established criteria.
From a cybersecurity operations perspective, organizations should disregard withdrawn CVE candidates as they represent no actionable threat or vulnerability requiring immediate attention. Security teams must distinguish between legitimate CVE entries and withdrawn candidates to avoid wasting resources on non-existent threats or implementing incorrect remediation measures. The CVE program's withdrawal process demonstrates the rigorous validation procedures necessary to maintain credible vulnerability intelligence. Such mechanisms align with industry standards for vulnerability management and help prevent confusion in security operations centers that depend on accurate vulnerability data for incident response planning.
Organizations maintaining vulnerability databases or security monitoring systems should regularly verify their CVE mappings against official sources to ensure they are not incorporating withdrawn entries into their threat intelligence feeds. The withdrawal of candidate numbers also highlights the evolving nature of cybersecurity assessments where initial findings may require further validation or correction as more information becomes available. This process reflects the dynamic environment of cybersecurity where new discoveries and clarifications continuously refine our understanding of potential threats.
The absence of any supporting documentation or references in this withdrawn candidate underscores the importance of requiring comprehensive evidence when assigning CVE identifiers. Security researchers and vendors must provide sufficient technical details, proof-of-concept demonstrations, and reproducible test cases to support their vulnerability claims before formal CVE assignment can occur. This requirement ensures that security professionals can trust the validity of reported vulnerabilities and make informed decisions about protective measures.
Withdrawn CVE candidates also demonstrate the importance of maintaining accurate threat intelligence baselines within organizations. Security teams should implement processes to identify and filter out withdrawn entries during vulnerability assessment activities, preventing false positives in security scanning or incident response procedures. The CVE program's withdrawal mechanism serves as a critical quality assurance function that protects the broader cybersecurity community from potentially misleading vulnerability information. This approach supports the broader ATT&CK framework's emphasis on accurate threat intelligence for effective defensive strategies and helps maintain the credibility of vulnerability management practices across different organizations and security domains.
The withdrawn candidate situation reinforces the need for continuous monitoring and validation of security intelligence sources. Organizations must establish robust processes to ensure their vulnerability management systems automatically exclude withdrawn candidates while maintaining awareness of the reasons behind such withdrawals. This practice ensures that security teams focus their efforts on genuine threats rather than pursuing remediation actions based on invalid CVE entries, thereby optimizing resource allocation in cybersecurity defense operations.