UpHeron
All vulnerabilities

Servers and applications

CVE-2009-4500

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.

Severity
Medium 5.0
Published
31 Dec 2009
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.3% in the next 30 daysHigher than 83% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
ZabbixServers and applications · cpe:a:zabbix:zabbix
  • Version 1.4.4
  • Version 1.4.3
  • Version 1.4.2
  • Version 1.1.5
All 8 release lines
  • Every version up to 1.4.6
  • Version 1.1.2
  • Version 1.1.3
  • Version 1.1.4
  • Version 1.1.5
  • Version 1.4.2
  • Version 1.4.3
  • Version 1.4.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2009-4500
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2009-4500