CVE-2009-4500

Name: CVE-2009-4500
Creator: NVD / NIST
Published: 2009-12-31T18:30:01.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.29%

Last modified Jun 16, 2026

CVE-2009-4500 is a vulnerability of currently unknown severity. The process_trap function in trapper/trapper.c in Zabbix Server before 1.6.6 allows remote attackers to cause a denial of service (crash) via a crafted request with data that lacks an expected : (colon) separator, which triggers a NULL pointer dereference.. EPSS estimates a 2.29% chance of exploitation in the next 30 days.

Description

The process_trap function in trapper/trapper.c in Zabbix Server before 1.6.6 allows remote attackers to cause a denial of service (crash) via a crafted request with data that lacks an expected : (colon) separator, which triggers a NULL pointer dereference.

Metrics

EPSS Probability

2.29%

81.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Zabbix	Zabbix	<= 1.4.6
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

References

http://secunia.com/advisories/37740Vendor Advisory
http://www.securityfocus.com/archive/1/508436/30/60/threaded
http://www.vupen.com/english/advisories/2009/3514Vendor Advisory
https://support.zabbix.com/browse/ZBX-993Vendor Advisory
http://secunia.com/advisories/37740Vendor Advisory
http://www.securityfocus.com/archive/1/508436/30/60/threaded
http://www.vupen.com/english/advisories/2009/3514Vendor Advisory
https://support.zabbix.com/browse/ZBX-993Vendor Advisory

Timeline

Published: Dec 31, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-4500?

How severe is CVE-2009-4500?

Severity scoring for CVE-2009-4500 is pending analysis. The EPSS model estimates a 2.29% probability of exploitation in the next 30 days.

How do I fix CVE-2009-4500?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-4500?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST