CVE-2025-62666

MEDIUMNVD 6.9

6.9

Allocation of Resources Without Limits or Throttling vulnerability in The Wikimedia Foundation Mediawiki - CirrusSearch Extension allows HTTP DoS.This issue affects Mediawiki - CirrusSearch Extension: from master before 1.43.

CVSS v3: 6.9
EG Score: 0.0(none)
EPSS: 19.5%
KEV: Not listed

Published

October 18, 2025

Last Modified

April 15, 2026

References (2)

c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://gerrit.wikimedia.org/r/q/I3e8d819868c0491b18368af8e543180e747023c2
c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://phabricator.wikimedia.org/T401220

Weakness Classification(1)

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

CWE-770Allocation of Resources Without Limits or Throttling

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:10 UTCepss_batch
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2026-06-04 13:12 UTCepss_batch
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2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
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2026-05-29 13:44 UTCepss_batch
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2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch

Frequently asked(5)

What is CVE-2025-62666?

CVE-2025-62666 is a medium vulnerability published on October 18, 2025. Allocation of Resources Without Limits or Throttling vulnerability in The Wikimedia Foundation Mediawiki - CirrusSearch Extension allows HTTP DoS.This issue affects Mediawiki - CirrusSearch Extension: from master before 1.43.

When was CVE-2025-62666 disclosed?

CVE-2025-62666 was first published in the National Vulnerability Database on October 18, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-62666 actively exploited?

CVE-2025-62666 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-62666?

CVE-2025-62666 has a CVSS v3 base score of 6.9 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2025-62666?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-62666, 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.

Dependency Blast Radius

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CVE-2025-62666

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-62666?

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Published

Last Modified

References (2)

Frequently asked(5)

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