How severe is CVE-2023-28432?

CVE-2023-28432 has a CVSS score of 7.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2023-28432?

Affected package information for CVE-2023-28432 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2023-28432?

Upgrade the affected component to the fixed release for CVE-2023-28432, or apply your distribution's backported patch — distro builds are often patched at an older version number, so check your vendor's advisory rather than the upstream version alone.

How do I detect CVE-2023-28432 in my code and dependencies?

Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

How do I mitigate CVE-2023-28432 if there is no patch (or I can't update yet)?

Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Is CVE-2023-28432 actively exploited in the wild?

Yes. There are 20 known exploit references for CVE-2023-28432, including 12 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2023-28432?

CVE-2023-28432 has an EPSS (Exploit Prediction Scoring System) score of 84.0%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2023-28432 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2023-28432 (MinIO Information Disclosure Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2023-04-21. CISA required all US federal civilian agencies to remediate this vulnerability by 2023-05-12. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2023-28432?

CVE-2023-28432 is classified as Information Exposure (CWE-200). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for CVE-2023-28432?

A Nuclei detection template exists for CVE-2023-28432, meaning automated scanners can fingerprint it. A Metasploit module references CVE-2023-28432, which lowers the barrier to weaponization. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2023-28432 published, and has it been updated?

CVE-2023-28432 was published on March 22, 2023 and was last updated on October 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🛡️

CISA KEV · ACTIVELY EXPLOITED

HIGH severity

CVE-2023-28432 — minio

HIGH

CVE-2023-28432 is a high-severity (CVSS 7.5) Information Exposure vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2023-04-21) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.

Minio Information Disclosure in Cluster Deployment

Also known asGHSA-6xvq-wj2x-3h3q

Published

Mar 22, 2023

Updated

Oct 21, 2026

Affected

1 product

Patched

See advisory

Exploits

20 known

Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2023-04-21. Federal agencies were required to remediate by 2023-05-12.
CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2023-28432.

EPSS Exploitation Probability

via FIRST.org ↗

84.0%probability of exploitation in next 30 days

Very High Risk0.00%

Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2023-28432 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

Minio is a Multi-Cloud Object Storage framework. In a cluster deployment starting with RELEASE.2019-12-17T23-16-33Z and prior to RELEASE.2023-03-20T20-16-18Z, MinIO returns all environment variables, including MINIO_SECRET_KEY and MINIO_ROOT_PASSWORD, resulting in information disclosure. All users of distributed deployment are impacted. All users are advised to upgrade to RELEASE.2023-03-20T20-16-18Z.

Affected Products

1 product · 1 configurations

Application

miniominio

≥ 2019-12-17t23-16-33z && < 2023-03-20t20-16-18z

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.