CVE-2012-0862

builtins.c in Xinetd before 2.3.15 does not check the service type when the tcpmux-server service is enabled, which exposes all enabled services and allows remote attackers to bypass intended access restrictions via a request to tcpmux port 1.

Published: 2012-06-04 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-0862 is rated Moderate Risk (49/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.78%). EPSS rose +2.24% 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-2012-0862

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 0.53% 2.78% +2.24%
2 2025-12-14 1.04% 0.53% -0.50%
3 2025-10-08 — 1.04% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-0862

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2012-0862

OS Trackers for CVE-2012-0862

vendor priority summary link
debian not yet assigned CVE-2012-0862 not yet assigned priority: Debian including 1 source packages (xinetd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-0862
redhat low — https://access.redhat.com/security/cve/CVE-2012-0862
ubuntu low CVE-2012-0862 low priority: Ubuntu including 1 source packages (xinetd), 24 status rows across 24 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hardy, hirsute, lucid, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 18, ignored 5, released 1. https://ubuntu.com/security/CVE-2012-0862

Affected software / configurations for CVE-2012-0862

Vendor Product Version Raw CPE
xinetd xinetd <= 2.3.14 cpe:2.3:a:xinetd:xinetd:*:*:*:*:*:*:*:*
xinetd xinetd 2.3.5 cpe:2.3:a:xinetd:xinetd:2.3.5:*:*:*:*:*:*:*
xinetd xinetd 2.3.6 cpe:2.3:a:xinetd:xinetd:2.3.6:*:*:*:*:*:*:*
xinetd xinetd 2.3.7 cpe:2.3:a:xinetd:xinetd:2.3.7:*:*:*:*:*:*:*
xinetd xinetd 2.3.8 cpe:2.3:a:xinetd:xinetd:2.3.8:*:*:*:*:*:*:*
xinetd xinetd 2.3.9 cpe:2.3:a:xinetd:xinetd:2.3.9:*:*:*:*:*:*:*
xinetd xinetd 2.3.10 cpe:2.3:a:xinetd:xinetd:2.3.10:*:*:*:*:*:*:*
xinetd xinetd 2.3.11 cpe:2.3:a:xinetd:xinetd:2.3.11:*:*:*:*:*:*:*
xinetd xinetd 2.3.12 cpe:2.3:a:xinetd:xinetd:2.3.12:*:*:*:*:*:*:*
xinetd xinetd 2.3.13 cpe:2.3:a:xinetd:xinetd:2.3.13:*:*:*:*:*:*:*

References for CVE-2012-0862

cvelogic Threat Intelligence