What is CVE-2011-4068?

CVE-2011-4068 is a critical-severity vulnerability in Packetfence, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-02-01.

How severe is CVE-2011-4068?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Packetfence

CVE-2011-4068

The check_password function in html/admin/login.php in PacketFence before 3.0.2 allows remote attackers to bypass authentication via an empty password.

Vulnerability class: Broken Authentication

Published 2018-02-01 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (73.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Packetfence

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

packetfence.org/bugs/view.php (Patch, Vendor Advisory)
packetfence.org/bugs/changelog_page.php (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2011-4068?: CVE-2011-4068 is a critical-severity vulnerability in Packetfence, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-02-01.
How severe is CVE-2011-4068?: Critical severity. CVSS v3 base score is 9.8 out of 10.