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CVE-2009-4501

25
FAUCET Score

CVE-2009-4501 is a denial-of-service vulnerability affecting Zabbix Server versions prior to 1.6.8. It allows remote attackers to crash the server by sending a malformed request lacking expected separators, leading to a NULL pointer dereference in the zbx_get_next_field function. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, resulting in partial availability impact. While there is an ExploitDB entry (EDB-10432) mentioning multiple Zabbix vulnerabilities, there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage for this specific CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.7CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*
1.1.2CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1.2:*:*:*:*:*:*:*
1.1.3CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1.3:*:*:*:*:*:*:*
1.1.4CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1.4:*:*:*:*:*:*:*
1.1.5CPE matchmatch criteria
cpe:2.3:a:zabbix:zabbix:1.1.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.53%
Probability of exploitation in next 30 days
EPSS Percentile
94.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-10432 · Dec 14, 2009
This CVE's current EPSS score of 0.0853 is in the 93rd percentile among its peer group of 23,725 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/37740
Vendor Advisory
support.zabbix.com / browse/ZBX-1355
securityfocus.com / archive/1/508436/30/60/threaded
Patch
vupen.com / english/advisories/2009/3514
Vendor Advisory