CVE-2009-4500: n/a vulnerability

CVE-2009-4500: The process_trap function in trapper/trapper.c in Zabbix Server before 1.6.6 allows remote attackers to cau...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 01:56 UTC (UTC+00:00)

Security readout for executives and security teams

This vulnerability can let a remote attacker crash older Zabbix Server installations by sending malformed data. The business impact is monitoring outage: alerts, visibility, and operational response may be impaired until the server restarts or is fixed. Exposure is limited to organizations still running Zabbix Server versions before 1.6.6, especially where the server or trapper-facing service is reachable from untrusted networks. Prioritize if Zabbix is still used for production monitoring and any instance is legacy or externally reachable. Risk is mainly availability loss, not confirmed data compromise. Mitigation focus: Upgrade affected Zabbix Server installations to 1.6.6 or a supported later release.; Check Zabbix vendor guidance, including ZBX-993, for authoritative remediation details.; Restrict network access to Zabbix Server services until remediation is complete..

Prepared: Jun 28, 2026, 09:59 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2009-4500 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 31, 2009, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://support.zabbix.com/browse/ZBX-993CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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