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Fencer Vulns
high 7.5

CVE-2016-7797 json

Pacemaker before 1.1.15, when using pacemaker remote, might allow remote attackers to cause a denial of service (node disconnection) via an…

published 2017-03-24 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-8647

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Pacemaker before 1.1.15, when using pacemaker remote, might allow remote attackers to cause a denial of service (node disconnection) via an unauthenticated connection.

Patch / fix

  • pacemaker Debian 14, Debian 13, Debian 12 1.1.15~rc3-1

debian advisories DEBIAN-CVE-2016-7797

  • pacemaker Ubuntu 16.04 LTS 1.1.14-2ubuntu1.2

ubuntu advisories UBUNTU-CVE-2016-7797

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • pacemaker RHEL 7 1.1.15-11.el7
  • pacemaker-cli RHEL 7 1.1.15-11.el7
  • pacemaker-cts RHEL 7 1.1.15-11.el7
  • pacemaker-libs RHEL 7 1.1.15-11.el7
  • pacemaker-remote RHEL 7 1.1.15-11.el7
  • pacemaker-cluster-libs RHEL 7 1.1.15-11.el7
  • pacemaker-nagios-plugins-metadata RHEL 7 1.1.15-11.el7

red hat advisories RHSA-2016:2578

  • pacemaker SLE High Availability Extension 11 SP4 1.1.12-18.1
  • pacemaker SLE Software Development Kit 12 SP1, SLE High Availability Extension 12 SP1 1.1.13-20.1
  • pacemaker SLE Software Development Kit 12 SP2, SLE High Availability Extension 12 SP2 1.1.15-21.1

suse advisories SUSE-SU-2016:3162-1SUSE-SU-2016:2974-1SUSE-SU-2016:2869-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-7797 updated cvss 8.6

pacemaker: pacemaker remote nodes vulnerable to hijacking, resulting in a DoS attack

  • Red Hat Enterprise Linux Server High Availability (v. 7) pacemaker 1.1.15-11.el7, pacemaker-cli 1.1.15-11.el7, pacemaker-cts 1.1.15-11.el7, pacemaker-libs 1.1.15-11.el7, pacemaker-remote 1.1.15-11.el7, pacemaker-cluster-libs 1.1.15-11.el7, +1 more Red Hat Enterprise Linux Server Resilient Storage (v. 7) pacemaker 1.1.15-11.el7, pacemaker-cli 1.1.15-11.el7, pacemaker-cts 1.1.15-11.el7, pacemaker-libs 1.1.15-11.el7, pacemaker-remote 1.1.15-11.el7, pacemaker-cluster-libs 1.1.15-11.el7, +1 more
    fixed: vendor fix RHSA-2016:2578
  • Red Hat Enterprise Linux 6 pacemaker, pacemaker-cli, pacemaker-cts, pacemaker-libs, pacemaker-remote, pacemaker-cluster-libs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.25% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.