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CVE-2012-5158

16
FAUCET Score

CVE-2012-5158 describes a session invalidation vulnerability in Puppet Enterprise (PE) versions prior to 2.6.1, affecting Puppet and Puppet Enterprise products from both Puppet and Puppetlabs. This flaw allows authenticated attackers to maintain access even after a session secret change due to improper session invalidation. With a CVSS score of 4.0 (AV:N/AC:L/Au:S/C:N/I:P/A:N), it indicates a network-based attack with low complexity requiring authentication, potentially leading to partial integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.0CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:2.0.0:*:*:*:*:*:*:*
2.5.1CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:2.5.1:*:*:*:*:*:*:*
2.5.2CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:2.5.2:*:*:*:*:*:*:*
2.5.0CPE matchmatch criteria
cpe:2.3:a:puppetlabs:puppet:2.5.0:-:enterprise:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:L/Au:S/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 65th percentile among its peer group of 21,954 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

puppetlabs.com / security/cve/cve-2012-5158
Vendor Advisory