CVE-2012-0862

MEDIUM

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 acces...

Affects 1 product across 1 vendor.

CVSS 2.04.3
EPSS2.7%
Percentile86th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, no integrity impact, no availability impact.
CWE Weakness Definitions
CWE-20: Improper Input Validation

Software does not validate or incorrectly validates input, allowing attackers to craft data processed in unintended ways.

Related Attack Patterns (CAPEC)
CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
via CWE-20
CAPEC-7 Blind SQL Injection
via CWE-20
CAPEC-8 Buffer Overflow in an API Call
via CWE-20
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-20
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-20
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Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2012. A medium severity vulnerability affects Xinetd systems (CVE-2012-0862). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2012-GLOBAL-090361-M • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2012-0862?
This vulnerability was disclosed in 2012. A medium severity vulnerability affects Xinetd systems (CVE-2012-0862). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2012-0862?
CVE-2012-0862 has CVSS 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N. EPSS: 2.7%.
Is CVE-2012-0862 actively exploited?
No confirmed active exploitation of CVE-2012-0862 as of 2026-09-25.
How do I remediate CVE-2012-0862?
Priority: MONITOR.
What systems are affected by CVE-2012-0862?
CVE-2012-0862 affects Xinetd Xinetd.
Vulnerability Details
CVE IDCVE-2012-0862
BSIDBS-2012-GLOBAL-090361-M BreachSpider Global ID
CVSS VectorAV:N/AC:M/Au:N/C:P/I:N/A:N
Published2012-06-04
Last Modified2026-06-16
ICS Relevance0%
Weakness (CWE)
Improper Input Validation
SourceNVD
Official Description

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.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: 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. CVSS vector: AV:N/AC:M/Au:N/C:P/I:N/A:N.

Exploitation Likelihood: MINIMAL

Affected Products
VendorProductAffected Versions
Xinetd Xinetd ≤ 2.3.14
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 5246 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hashfe8e29a28280b18674ddd458d3d8dbad63a846e15c90cf6e72cbb6b7c655eef66b4f9c0b5bfa292c20b4e87b2c5668440dbe5c555f495a32af12dac629a5670e
Related CVEs affecting Xinetd
CVE-2001-0825 10.0 Buffer overflow in internal string handling routines of xinetd before 2.1.8.8... CVE-2013-4342 7.6 xinetd does not enforce the user and group configuration directives for TCPMU... CVE-2001-1389 7.5 Multiple vulnerabilities in xinetd 2.3.0 and earlier, and additional variants... CVE-2000-0536 7.5 xinetd 2.1.8.x does not properly restrict connections if hostnames are used f... CVE-2003-0211 5.0 Memory leak in xinetd 2.3.10 allows remote attackers to cause a denial of ser...
View all Xinetd CVEs →

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