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CVE-2018-16877

25
FAUCET Score

CVE-2018-16877 describes a local privilege escalation flaw in Pacemaker versions up to 2.0.0, stemming from an authentication vulnerability in its client-server communication. This high-severity vulnerability (CVSS 7.8) allows a local attacker to gain elevated privileges with low attack complexity, impacting confidentiality, integrity, and availability. While the vulnerability has a high CVSS score, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.0.0CPE matchmatch criteria
cpe:2.3:a:clusterlabs:pacemaker:*:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
18.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
19.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
33.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 73rd percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: pacemaker-0:1.1.19-8.el7_6.5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: pacemaker-0:2.0.1-4.el8_0.3
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: pacemaker
redhatend of lifevia redhat_api
Product: Red Hat Storage 3Fixed in: pacemaker

Vendor Advisories (1)

redhatCVE-2018-16877Important

pacemaker: Insufficient local IPC client-server authentication on the client's side can lead to local privesc

Apr 17, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-05/msg00012.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-05/msg00034.html
Mailing ListThird Party Advisory
access.redhat.com / errata/RHSA-2019:1278
Third Party Advisory
access.redhat.com / errata/RHSA-2019:1279
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / ClusterLabs/pacemaker/pull/1749
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2021/01/msg00007.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/3GCWFO7GL6MBU6C4BGFO3P6L77DIBBF3
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/FY4M4RMIG2POKC6OOFQODGKPRYXHET2F
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HR6QUYGML735EI3HEEHYRDW7EG73BUH2
security.gentoo.org / glsa/202309-09
usn.ubuntu.com / 3952-1
Third Party Advisory
securityfocus.com / bid/108042
Broken Link