HOMEVULNERABILITIESCVE-2018-11747
CRITICAL

CVE-2018-11747

CWE-295Published: March 21, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Previously, Puppet Discovery was shipped with a default generated TLS certificate in the nginx container. In version 1.4.0, a unique certificate will be generated on installation or the user will be able to provide their own TLS certificate for ingress.

NVD Source

Technical Analysis

CVE-2018-11747 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

puppet1 product(s)
discovery
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://puppet.com/security/cve/CVE-2018-11747
ADVISORYhttps://puppet.com/security/cve/CVE-2018-11747

All References (4)

→
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
→
https://puppet.com/security/cve/CVE-2018-11747Vendor Advisory
→
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
→
https://puppet.com/security/cve/CVE-2018-11747Vendor Advisory

Quick Facts

CVE IDCVE-2018-11747
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-295
CISA KEVNo
Affected1 vendor(s)
PublishedMar 21, 2019

Related CVEs (CWE-295)

CVE-2026-4370
10.0
CVE-2025-6433
9.8
CVE-2024-56521
9.8
CVE-2025-36041
9.8
CVE-2025-32878
9.8
CVE-2026-9258
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-11747 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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