What is CVE-2016-1000104?

CVE-2016-1000104 is a high-severity vulnerability in Apache Mod Fcgid, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2019-12-03.

How severe is CVE-2016-1000104?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Apache Mod Fcgid

CVE-2016-1000104

A security Bypass vulnerability exists in the FcgidPassHeader Proxy in mod_fcgid through 2016-07-07.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-12-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (82.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Apache Mod Fcgid
openSUSE Leap — versions 42.1
openSUSE — versions 13.2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.openwall.com/lists/oss-security/2016/07/18/6
lists.opensuse.org/opensuse-updates/2016-08/msg00084.html (Mailing List, Third Party Advisory)
www.securityfocus.com/bid/91822
www.tenable.com/security/tns-2017-04

Frequently asked questions

What is CVE-2016-1000104?: CVE-2016-1000104 is a high-severity vulnerability in Apache Mod Fcgid, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2019-12-03.
How severe is CVE-2016-1000104?: High severity. CVSS v3 base score is 8.8 out of 10.