Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-19788

34
FAUCET Score

CVE-2018-19788 is a critical vulnerability in PolicyKit (polkit) 0.115, affecting various distributions including Canonical and Debian Linux. This flaw allows a local attacker with a user ID greater than INT_MAX to execute arbitrary systemctl commands, bypassing intended security policies. With a CVSS score of 8.8 (High), this vulnerability presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While no active exploits or public exploit code (Metasploit, ExploitDB) have been identified, and community discussion is minimal, its high FAUCET Risk Score of 98/100 indicates its severe potential.

Impacted Technologies

VendorProductVersion(s)CPE
0.115CPE matchmatch criteria
cpe:2.3:a:polkit_project:polkit:0.115:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
11.48%
Probability of exploitation in next 30 days
EPSS Percentile
95.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1148 is in the 95th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: polkit-0:0.112-22.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: polkit-0:0.112-18.el7_6.2
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: polkit
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: redhat-virtualization-host
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: rhvm-appliance

Vendor Advisories (1)

redhatCVE-2018-19788Moderate

polkit: Improper handling of user with uid > INT_MAX leading to authentication bypass

Dec 3, 2018

References

security.netapp.com / advisory/ntap-20240816-0001
access.redhat.com / errata/RHSA-2019:2046
access.redhat.com / errata/RHSA-2019:3232
bugs.debian.org / 915332
Issue TrackingMailing ListThird Party Advisory
gitlab.freedesktop.org / polkit/polkit/issues/74
ExploitPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/01/msg00021.html
Third Party Advisory
security.gentoo.org / glsa/201908-14
usn.ubuntu.com / 3861-1
Third Party Advisory
usn.ubuntu.com / 3861-2
Third Party Advisory
debian.org / security/2018/dsa-4350
Third Party Advisory