What is CVE-2021-41732?

CVE-2021-41732 is a high-severity vulnerability in Zeek, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2021-09-29.

How severe is CVE-2021-41732?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Zeek

CVE-2021-41732

An issue was discovered in zeek version 4.1.0. There is a HTTP request splitting vulnerability that will invalidate any ZEEK HTTP based security analysis. NOTE: the vendor's position is that the observed behavior is intended

Vulnerability class: HTTP Request Smuggling

EPSS: 0.009 (55.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Zeek — versions 4.1.0
N/a — versions n/a

Weakness classification (CWE)

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

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-41732?: CVE-2021-41732 is a high-severity vulnerability in Zeek, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2021-09-29.
How severe is CVE-2021-41732?: High severity. CVSS v3 base score is 7.5 out of 10.