Is CVE-2018-16877 being actively exploited?

CVE-2018-16877 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2018-16877?

CVE-2018-16877 has a CVSS 3.1 base score of 7.8 (HIGH).

CVE-2018-16877

HIGH · CVSS 7.8EPSS 0.4%EU EUVD

A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0. A local attacker could use this flaw, and combine it with other IPC weaknesses, to achieve local privilege escalation.

Key facts

CVSS score: 7.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-287
EPSS score: 0.4% (30th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2018-8667)
Published: April 18, 2019
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2018-8667 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
clusterlabs / pacemaker
debian / debian linux
fedoraproject / fedora
fedoraproject / fedora
fedoraproject / fedora
opensuse / leap
opensuse / leap
redhat / enterprise linux
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus

Certified products that may be affected

26 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat, Inc. - FIPS 140 5513 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, LLC - FIPS 140 5461 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5089 - active
Red Hat Enterprise Linux 8.6 - Red Hat, Inc. - Common Criteria CCEVS-VR-VID-11309-2024 - archived
Red Hat Enterprise Linux 8 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 4642 - historical

See all 26 in the Security Certifications Explorer.

References

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00012.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00034.html(Mailing List, Third Party Advisory)
http://www.securityfocus.com/bid/108042(Broken Link)
https://access.redhat.com/errata/RHSA-2019:1278(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2019:1279(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16877(Issue Tracking, Patch, Third Party Advisory)
https://github.com/ClusterLabs/pacemaker/pull/1749(Patch, Third Party Advisory)
https://lists.debian.org/debian-lts-announce/2021/01/msg00007.html(Mailing List, Third Party Advisory)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GCWFO7GL6MBU6C4BGFO3P6L77DIBBF3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FY4M4RMIG2POKC6OOFQODGKPRYXHET2F/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HR6QUYGML735EI3HEEHYRDW7EG73BUH2/
https://security.gentoo.org/glsa/202309-09
https://usn.ubuntu.com/3952-1/(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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