CVE-2014-8566

The mod_auth_mellon module before 0.8.1 allows remote attackers to obtain sensitive information or cause a denial of service (segmentation fault) via unspecified vectors related to a "session overflow" involving "sessions overlapping in memory."

Published: 2014-11-15 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-8566 is rated Moderate Risk (52/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.94%). 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-2014-8566

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 2026-02-11 1.09% 0.94% -0.16%
2 2025-04-05 1.00% 1.09% +0.09%
3 2025-03-30 — 1.00% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-8566

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:P 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:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2014-8566

OS Trackers for CVE-2014-8566

vendor priority summary link
debian not yet assigned CVE-2014-8566 not yet assigned priority: Debian including 1 source packages (libapache2-mod-auth-mellon), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-8566
redhat high — https://access.redhat.com/security/cve/CVE-2014-8566
ubuntu medium CVE-2014-8566 medium priority: Ubuntu including 1 source packages (libapache2-mod-auth-mellon), 14 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 9, DNE 3, ignored 1, released 1. https://ubuntu.com/security/CVE-2014-8566

Affected software / configurations for CVE-2014-8566

Vendor Product Version Raw CPE
uninett mod_auth_mellon <= 0.8.0 cpe:2.3:a:uninett:mod_auth_mellon:*:*:*:*:*:*:*:*
oracle linux 6 cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*

References for CVE-2014-8566

cvelogic Threat Intelligence