Is CVE-2009-3898 in the CISA KEV catalog?

No. CVE-2009-3898 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-3898?

CVE-2009-3898 has a CVSS v2 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2009-3898?

CVE-2009-3898 has an EPSS score of 15.89% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-3898

MEDIUMEPSS 96th pctl

4.9

CVSS v2

NVD

Description

Directory traversal vulnerability in src/http/modules/ngx_http_dav_module.c in nginx (aka Engine X) before 0.7.63, and 0.8.x before 0.8.17, allows remote authenticated users to create or overwrite arbitrary files via a .. (dot dot) in the Destination HTTP header for the WebDAV (1) COPY or (2) MOVE method.

CWE-22Path Traversal

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

15.89%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.