How severe is CVE-2009-4502?

CVE-2009-4502 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-4502 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4502?

CVE-2009-4502 primarily affects Zabbix. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-4502?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-4502 published?

CVE-2009-4502 was published on 2009-12-31 and last updated on 2026-06-16.

CVE-2009-4502

CVE-2009-4502 is a critical-severity vulnerability in Zabbix with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Zabbix
Published: 2009-12-31
Last modified: 2026-06-16

Description

The NET_TCP_LISTEN function in net.c in Zabbix Agent before 1.6.7, when running on FreeBSD or Solaris, allows remote attackers to bypass the EnableRemoteCommands setting and execute arbitrary commands via shell metacharacters in the argument to net.tcp.listen. NOTE: this attack is limited to attacks from trusted IP addresses.

Frequently asked questions

What is CVE-2009-4502?: The NET_TCP_LISTEN function in net.c in Zabbix Agent before 1.6.7, when running on FreeBSD or Solaris, allows remote attackers to bypass the EnableRemoteCommands setting and execute arbitrary commands via shell metacharacters in the argument to net.tcp.listen. NOTE: this attack is limited to attacks from trusted IP addresses.
How severe is CVE-2009-4502?: CVE-2009-4502 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-4502 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4502?: CVE-2009-4502 primarily affects Zabbix. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4502?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-4502 published?: CVE-2009-4502 was published on 2009-12-31 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.4.4:*:*:*:*:*:*:*
cpe:2.3:a:zabbix:zabbix:1.4.6:*:*:*:*:*:*:*

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