CVE-2009-4500
The process_trap function in trapper/trapper.c in Zabbix Server before 1.6.6 allows remote...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-4500- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-4500- Updated
- 2026-11-02
EUVDEUVD-2009-4466 No score
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.
- Record
EUVD-2009-4466- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8jg5-4gwh-7gh9 No score
The process_trap function in trapper/trapper.c in Zabbix Server before 1.6.6 allows remote...
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.
- Record
GHSA-8jg5-4gwh-7gh9- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2009-4500- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-4500 No score
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.
- Record
DEBIAN-CVE-2009-4500- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-4500 is a medium vulnerability (CVSS 5.0) in Zabbix, published December 31, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.29%, the 83rd percentile. Fixed in zabbix 1:1.8-1.