CVE-2013-4961

Puppet Enterprise before 3.0.1 includes version information for the Apache and Phusion Passenger products in its HTTP response headers, which allows remote attackers to obtain sensitive information.

Published: 2013-08-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4961 is rated Moderate Risk (48/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.80%). EPSS rose +1.55% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4961

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.25% 1.80% +1.55%
2 2025-03-30 0.52% 0.25% -0.27%
3 2025-03-29 — 0.52% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4961

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-4961

OS Trackers for CVE-2013-4961

vendor priority summary link
debian unimportant CVE-2013-4961 unimportant priority: Debian including 1 source packages (puppet), 1 status rows across 1 suites (bullseye): resolved 1. https://security-tracker.debian.org/tracker/CVE-2013-4961
ubuntu negligible CVE-2013-4961 negligible priority: Ubuntu including 1 source packages (puppet), 5 status rows across 5 suites (lucid, precise, quantal, raring, upstream): not-affected 4, ignored 1. https://ubuntu.com/security/CVE-2013-4961

Affected software / configurations for CVE-2013-4961

Vendor Product Version Raw CPE
puppet puppet_enterprise <= 3.0.0 cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
puppet puppet_enterprise 2.5.1 cpe:2.3:a:puppet:puppet_enterprise:2.5.1:*:*:*:*:*:*:*
puppet puppet_enterprise 2.5.2 cpe:2.3:a:puppet:puppet_enterprise:2.5.2:*:*:*:*:*:*:*
puppet puppet_enterprise 2.8.0 cpe:2.3:a:puppet:puppet_enterprise:2.8.0:*:*:*:*:*:*:*
puppet puppet_enterprise 2.8.1 cpe:2.3:a:puppet:puppet_enterprise:2.8.1:*:*:*:*:*:*:*
puppet puppet_enterprise 2.8.2 cpe:2.3:a:puppet:puppet_enterprise:2.8.2:*:*:*:*:*:*:*
puppet puppet_enterprise 2.8.3 cpe:2.3:a:puppet:puppet_enterprise:2.8.3:*:*:*:*:*:*:*

References for CVE-2013-4961

cvelogic Threat Intelligence