What is CVE-2011-0703?

CVE-2011-0703 is a critical-severity vulnerability in Gksu-Polkit, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-11-15.

How severe is CVE-2011-0703?

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

Improper input validation in Gksu-Polkit

CVE-2011-0703

In gksu-polkit before 0.0.3, the source file for xauth may contain arbitrary commands that may allow an attacker to overtake an administrator X11 session.

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

Published 2019-11-15 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (68.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Gksu-Polkit — versions before 0.0.3
Gksu-Polkit Project
Debian Linux — versions 6.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-tracker.debian.org/tracker/CVE-2011-0703 (Third Party Advisory)
access.redhat.com/security/cve/cve-2011-0703 (Broken Link)

Frequently asked questions

What is CVE-2011-0703?: CVE-2011-0703 is a critical-severity vulnerability in Gksu-Polkit, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2019-11-15.
How severe is CVE-2011-0703?: Critical severity. CVSS v3 base score is 9.8 out of 10.