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CVE-2018-1116

19
FAUCET Score

CVE-2018-1116 describes a flaw in polkit versions prior to 0.116, affecting various distributions of Debian and Ubuntu Linux. This vulnerability allows an authenticated local attacker to trigger authentication for unrelated processes owned by other users. The severity is rated Medium (CVSS 4.4), indicating a low attack complexity and requiring local user privileges, with potential impacts including information disclosure and a local denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.2
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
64.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0120 is in the 97th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (3)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: polkit-0:0.112-26.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: polkit

Vendor Advisories (1)

redhatCVE-2018-1116Low

polkit: Improper authorization in polkit_backend_interactive_authority_check_authorization function in polkitd

Jul 10, 2018

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
cgit.freedesktop.org / polkit/commit
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00042.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201908-14
Third Party Advisory
usn.ubuntu.com / 3717-2
Third Party Advisory