CVE-2021-47990: Rejected CVE Entry Vulnerability Record

CVE-2021-47990 Overview

CVE-2021-47990 has been rejected by the CVE Numbering Authority. The identifier is no longer considered a valid vulnerability record in the National Vulnerability Database (NVD). Security teams should disregard this entry when triaging vulnerabilities or updating asset inventories.

Rejected CVE identifiers occur when a reserved or published entry is later determined to be a duplicate, withdrawn by the requester, or found to not represent a legitimate security issue. No affected products, vendors, or technical details are associated with this record.

Critical Impact
This CVE ID has been rejected and does not represent an actionable vulnerability. No remediation is required.

Affected Products

Not Available - CVE record rejected
Not Available - No vendor associated
Not Available - No product associated

Discovery Timeline

2026-08-11 - CVE-2021-47990 published to NVD as rejected
2026-08-11 - Last updated in NVD database

Technical Details for CVE-2021-47990

Vulnerability Analysis

No technical analysis is available for CVE-2021-47990. The CVE Numbering Authority has rejected this identifier, and no vulnerability data, affected components, or exploitation details are published in the National Vulnerability Database.

Rejected CVE IDs typically result from one of several administrative outcomes. The reserving party may have withdrawn the request, the reported issue may not meet the CVE criteria for a distinct security vulnerability, or the entry may duplicate another assigned CVE. In each case, the identifier remains in the CVE list for traceability but carries no vulnerability content.

Root Cause

No root cause exists to document. The CVE record contains only the rejection notice provided by the CVE Numbering Authority.

Attack Vector

No attack vector applies to this identifier. Because the record was rejected, no exploitation path, prerequisites, or impact scoring have been assigned.

// No exploitation code applicable - CVE record rejected
// Refer to the CVE List at https://cve.mitre.org for the rejection notice

Detection Methods for CVE-2021-47990

Indicators of Compromise

No indicators of compromise are associated with CVE-2021-47990 because the identifier was rejected by the CVE Numbering Authority.
Vulnerability management platforms and scanners should suppress alerts referencing this CVE ID.

Detection Strategies

Remove CVE-2021-47990 from active detection rulesets and vulnerability tracking dashboards.
Verify that automated vulnerability feeds correctly mark this CVE as rejected to prevent false positive findings during audits.

Monitoring Recommendations

Monitor the NVD CVE record for any future status changes, though rejected CVEs are rarely reinstated.
Cross-reference vulnerability management reports to ensure this identifier is not counted toward open risk metrics.

How to Mitigate CVE-2021-47990

Immediate Actions Required

No patching or configuration changes are required because CVE-2021-47990 is a rejected CVE identifier.
Update internal vulnerability tracking systems to reflect the rejected status and close any tickets referencing this CVE.

Patch Information

No patch is available or required. The CVE record has been rejected and does not describe an exploitable vulnerability. Consult the official NVD entry for the authoritative rejection notice.

Workarounds

No workarounds are necessary for a rejected CVE identifier.
Educate security operations staff that rejected CVEs should be excluded from risk scoring and compliance reporting.

bash

# No mitigation configuration applies to a rejected CVE
# Example: suppress the identifier in a vulnerability scanner ignore list
# echo "CVE-2021-47990" >> /etc/vuln-scanner/rejected-cves.ignore