PatchSiren

PatchSiren cyber security CVE debrief

CVE-2023-28432 MinIO CVE debrief

CVE-2023-28432 is a MinIO information disclosure vulnerability that CISA added to the Known Exploited Vulnerabilities catalog on 2023-04-21. Because it is listed as known exploited, MinIO administrators should treat remediation as urgent and follow the vendor’s update guidance.

Vendor
MinIO
Product
MinIO
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2023-04-21
Original CVE updated
2023-04-21
Advisory published
2023-04-21
Advisory updated
2023-04-21

Who should care

MinIO administrators, cloud and infrastructure security teams, and any organization using MinIO for object storage should prioritize this issue, especially if they rely on the affected deployment for production or exposed services.

Technical summary

The supplied sources identify this issue as an information disclosure vulnerability in MinIO. The CISA KEV entry marks it as known exploited and points to the vendor advisory and NVD record. The corpus does not include affected versions, attack conditions, exploit mechanics, or a CVSS score.

Defensive priority

Urgent

Recommended defensive actions

  • Apply updates per vendor instructions as soon as possible.
  • Review the CISA KEV entry and ensure remediation is completed by the listed due date when applicable.
  • Inventory MinIO deployments and confirm which systems are exposed or in active use.
  • Check access logs and authentication records for unusual or unauthorized access that could indicate disclosure.
  • Monitor vendor and CISA guidance for any updated remediation or follow-up notices.

Evidence notes

This debrief is based only on the supplied CISA KEV metadata and the linked official records. The corpus confirms the vulnerability name, KEV status, date added, and remediation due date, but it does not provide affected version ranges, exploit details, or CVSS data.

Official resources

Publicly disclosed by 2023-04-21 and added to CISA’s Known Exploited Vulnerabilities catalog the same day. The supplied corpus does not indicate any ransomware-campaign linkage; knownRansomwareCampaignUse is listed as Unknown.