CVE-2025-1867

CRITICALNVD 10.0

10.0

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in ithewei libhv allows HTTP Response Smuggling.This issue affects libhv: through 1.3.3.

CVSS v3: 10.0
EG Score: 0.0(none)
EPSS: 50.8%
KEV: Not listed

Published

March 3, 2025

Last Modified

April 15, 2026

Advisory Details (1)

Auto-updated May 29, 2026

Patch available. Sources: github_pr.

github_pr Patch Available

Fix: Potential Vulnerability in Cloned Function

Patch available: ithewei/libhv v1.3.4 (PR #689 merged 2025-02-26)

https://github.com/ithewei/libhv/pull/689

Weakness Classification(1)

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

CWE-444Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling)

Data Freshness Timeline

(refreshed 14× 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.

2026-06-03 17:39 UTCOSV refresh
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
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
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2025-1867?

CVE-2025-1867 is a critical vulnerability published on March 3, 2025. Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in ithewei libhv allows HTTP Response Smuggling.This issue affects libhv: through 1.3.3.

When was CVE-2025-1867 disclosed?

CVE-2025-1867 was first published in the National Vulnerability Database on March 3, 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-2025-1867 actively exploited?

CVE-2025-1867 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-1867?

CVE-2025-1867 has a CVSS v3 base score of 10.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2025-1867?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-1867, 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-2025-1867

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Fix: Potential Vulnerability in Cloned Function

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-1867?

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Published

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Advisory Details (1)

Frequently asked(5)

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