CVE-2009-4500

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-12-31 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Zabbix: through 1.4.6; 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.4.2, 1.4.3 (+1)

References

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

Get alerted when CVE-2009-4500 or the next vulnerability affects your stack