CVE-2009-4501

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-12-31 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Zabbix: through 1.6.7; 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.4.2, 1.4.3 (+3)

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-1355
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-1355

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