CVE-2009-4501

Zabbix < 1.6.8 - Denial of Service via Missing Separators in Request

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-4501. PoCs published by Nicob.

AI-analyzed exploit summary This is a vulnerability writeup detailing multiple remote vulnerabilities in Zabbix Server, including remote command execution, SQL injection, and denial-of-service (NULL dereference). It references specific faulty source code functions and patched versions.

Description

The zbx_get_next_field function in libs/zbxcommon/str.c in Zabbix Server before 1.6.8 allows remote attackers to cause a denial of service (crash) via a request that lacks expected separators, which triggers a NULL pointer dereference, as demonstrated using the Command keyword.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Nicob · textwebappsmultiple
https://www.exploit-db.com/exploits/10432

This is a vulnerability writeup detailing multiple remote vulnerabilities in Zabbix Server, including remote command execution, SQL injection, and denial-of-service (NULL dereference). It references specific faulty source code functions and patched versions.

Classification
Writeup 90%
Attack Type
Rce | Sqli | Dos
Complexity
Moderate
Reliability
Theoretical
Target: Zabbix Server (versions 1.6.6, 1.6.7, 1.6.8, 1.8)
No auth needed
Prerequisites: Network access to Zabbix Server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Patch mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/508436/30/60/threaded
Various Sources x_refsource_confirm
https://support.zabbix.com/browse/ZBX-1355
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37740
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/3514

Scores

EPSS 0.0853
EPSS Percentile 94.4%

Details

CWE
CWE-119
Status published
Products (10)
zabbix/zabbix 1.1.2
zabbix/zabbix 1.1.3
zabbix/zabbix 1.1.4
zabbix/zabbix 1.1.5
zabbix/zabbix 1.4.2
zabbix/zabbix 1.4.3
zabbix/zabbix 1.4.4
zabbix/zabbix 1.4.6
zabbix/zabbix 1.6.6
zabbix/zabbix < 1.6.7
Published Dec 31, 2009
Tracked Since Feb 18, 2026