CVE-2025-1867: HTTP Response Smuggling Vulnerability in libhv

10.0 CVSS

Description

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.

Classification

CVE ID: CVE-2025-1867

CVSS Base Severity: CRITICAL

CVSS Base Score: 10.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem Types

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

Affected Products

Vendor: ithewei

Product: libhv

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 13.64% (scored less or equal to compared to others)

EPSS Date: 2025-04-01 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-1867
https://github.com/ithewei/libhv/pull/689

Timeline