CVE-2013-3724

Exp

The mk_request_header_process function in mk_request.c in Monkey 1.1.1 allows remote attackers to cause a denial of service (thread crash and service outage) via a '\0' character in an HTTP request.

Published: 2013-08-01 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-3724 is rated High Exploit Risk (68/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.87%, 92th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2013-3724

EDB-ID Source Kind Published Link
25837 exploit_db edb 2013-05-30 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-3724

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 2025-03-30 8.00% 8.87% +0.87%
2 2025-03-29 8.87% 8.00% -0.87%
3 2025-03-17 8.87%

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-3724

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:N/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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-3724

OS Trackers for CVE-2013-3724

vendor priority summary link
gentoo high CVE-2013-3724: 1 GLSA(s) (201309-17), 1 atom(s) (www-servers/monkeyd); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-3724
ubuntu medium CVE-2013-3724 medium priority: Ubuntu including 1 source packages (monkey), 13 status rows across 13 suites (lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 10, ignored 2, needed 1. https://ubuntu.com/security/CVE-2013-3724

Affected software / configurations for CVE-2013-3724

Vendor Product Version Raw CPE
monkey-project monkey 1.1.1 cpe:2.3:a:monkey-project:monkey:1.1.1:*:*:*:*:*:*:*

References for CVE-2013-3724

cvelogic Threat Intelligence