CVE-2018-1000538

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.5%, top 28% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Minio Inc. Minio S3 server version prior to RELEASE.2018-05-16T23-35-33Z contains a Allocation of Memory Without Limits or Throttling (similar to CWE-774) vulnerability in write-to-RAM that can result in Denial of Service. This attack appear to be exploitable via Sending V4-(pre)signed requests with large bodies . This vulnerability appears to have been fixed in after commit 9c8b7306f55f2c8c0a5c7cea9a8db9d34be8faa7.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
71.7%
KEV
Not listed

Published

June 26, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 22:12 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-21 10:18 UTCOSV refresh
  5. 2026-07-20 17:04 UTCEPSS rescore
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  1. 2026-07-06 16:24 UTCEPSS rescore
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  7. 2026-07-04 05:56 UTCOSV refresh
  8. 2026-07-02 16:54 UTCEPSS rescore
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  32. 2026-06-15 17:43 UTCOSV refresh
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  44. 2026-06-07 15:22 UTCEPSS rescore
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  46. 2026-06-06 13:45 UTCEPSS rescore
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  61. 2026-05-29 13:41 UTCEPSS rescore
  62. 2026-05-28 13:42 UTCEPSS rescore
  63. 2026-05-28 13:42 UTCEPSS rescore
  64. 2026-05-28 06:17 UTCEG score recompute
  65. 2026-05-27 13:38 UTCEPSS rescore
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  68. 2026-05-26 07:17 UTCEPSS rescore
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  70. 2026-05-24 13:51 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-1000538?
CVE-2018-1000538 is a high vulnerability published on June 26, 2018. Minio Inc. Minio S3 server version prior to RELEASE.2018-05-16T23-35-33Z contains a Allocation of Memory Without Limits or Throttling (similar to CWE-774) vulnerability in write-to-RAM that can result in Denial of Service. This attack appear to be exploitable via Sending V4-(pre)signed requests…
When was CVE-2018-1000538 disclosed?
CVE-2018-1000538 was first published in the National Vulnerability Database on June 26, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-1000538 actively exploited?
CVE-2018-1000538 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-1000538?
CVE-2018-1000538 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-1000538?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000538, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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