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CVE-2023-5255

22
FAUCET Score

CVE-2023-5255 is a high-severity vulnerability affecting Puppet Server and Puppet Enterprise that prevents the revocation of auto-renewed certificates. This flaw, with a CVSS score of 7.5, allows an unauthenticated attacker to cause a denial of service (A:H) due to the inability to revoke compromised certificates. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2023.3CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:2023.3:*:*:*:*:*:*:*
8.2.0CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_server:8.2.0:*:*:*:*:*:*:*
8.2.1CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_server:8.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 13th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2023-5255Low

puppet: Denial of Service for Revocation of Auto Renewed Certificates

Oct 3, 2023

References

puppet.com / security/cve/cve-2023-5255-denial-service-revocation-auto-renewed-certificates
Vendor Advisory