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NVD / CVE Program· CNA redhat

CVE-2016-7797: Pacemaker before 1.1.15, when using pacemaker remote, might allow remote attackers to cause a denial of service (node disconnection) via an…

HighCVSS 7.5 · v3.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.2% (FIRST EPSS); higher than 88.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: pacemaker (Debian:12) 1.1.15~rc3-1; pacemaker (Red Hat:enterprise_linux:7::server) 0:1.1.15-11.el7; pacemaker-cli (Red Hat:enterprise_linux:7::server) 0:1.1.15-11.el7.

Low priority for now. Upgrade to pacemaker (Debian:12) 1.1.15~rc3-1; pacemaker (Red Hat:enterprise_linux:7::server) 0:1.1.15-11.el7; pacemaker-cli (Red Hat:enterprise_linux:7::server) 0:1.1.15-11.el7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Mar 24, 2017
Updated
Jun 16, 2026
EPSS
3.2% · 88th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.2%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
clusterlabspacemaker
opensuseleap
opensuse projectleap
suselinux enterprise high availability
suselinux enterprise software development kit
redhatenterprise linux high availability
redhatenterprise linux resilient storage

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • clusterlabs pacemakerup to 1.1.14 inclusive
  • opensuse leap42.2
  • opensuse project leap42.1
  • redhat enterprise linux high availability7.0
  • redhat enterprise linux resilient storage7.0
  • suse linux enterprise high availability12
  • suse linux enterprise software development kit12

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12pacemakerbefore 1.1.15~rc3-11.1.15~rc3-1
Red Hat:enterprise_linux:7::serverpacemakerbefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-clibefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-cluster-libsbefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-ctsbefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-debuginfobefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-docbefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-libsbefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-libs-develbefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-nagios-plugins-metadatabefore 0:1.1.15-11.el70:1.1.15-11.el7
Red Hat:enterprise_linux:7::serverpacemaker-remotebefore 0:1.1.15-11.el70:1.1.15-11.el7
SUSE:Linux Enterprise High Availability Extension 11 SP4pacemakerbefore 1.1.12-18.11.1.12-18.1
SUSE:Linux Enterprise High Availability Extension 12 SP1pacemakerbefore 1.1.13-20.11.1.13-20.1
SUSE:Linux Enterprise High Availability Extension 12 SP2pacemakerbefore 1.1.15-21.11.1.15-21.1

Same product

clusterlabs: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-3885A use-after-free flaw was found in pacemaker up to and including version 2.0.1 which could result in certain sensitive information to be…
    31Monitor
  • CVE-2018-16877A flaw was found in the way pacemaker's client-server authentication was implemented in versions up to and including 2.0.0.
    31Monitor
  • CVE-2016-7035An authorization flaw was found in Pacemaker before 1.1.16, where it did not properly guard its IPC interface.
    31Monitor

Published before and after this one in the same product

  • Later →CVE-2018-16878Apr 18, 2019 · A flaw was found in pacemaker up to and including version 2.0.1.
    22Monitor
  • Later →CVE-2011-5271Nov 12, 2019 · Pacemaker before 1.1.6 configure script creates temporary files insecurely
    22Monitor
  • Later →CVE-2020-25654Nov 24, 2020 · An ACL bypass flaw was found in pacemaker.
    29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:pacemaker1.1.15~rc3-1 · Debian:12Package registry (OSV)
red hat:pacemaker0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-cli0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-cluster-libs0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-cts0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-debuginfo0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-doc0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-libs0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-libs-devel0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-nagios-plugins-metadata0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
red hat:pacemaker-remote0:1.1.15-11.el7 · Red Hat:enterprise_linux:7::serverPackage registry (OSV)
suse:pacemaker1.1.15-21.1 · SUSE:Linux Enterprise High Availability Extension 12 SP2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Not on record for this CVE: EPSS history · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-254 · 7PK - Security Features

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records