How severe is CVE-2002-2309?

CVE-2002-2309 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2002-2309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-2309?

CVE-2002-2309 primarily affects Php. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-2309?

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

When was CVE-2002-2309 published?

CVE-2002-2309 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-2309

CVE-2002-2309 is a high-severity vulnerability in Php with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Php
Published: 2002-12-31
Last modified: 2026-06-16

Description

php.exe in PHP 3.0 through 4.2.2, when running on Apache, does not terminate properly, which allows remote attackers to cause a denial of service via a direct request without arguments.

Frequently asked questions

What is CVE-2002-2309?: php.exe in PHP 3.0 through 4.2.2, when running on Apache, does not terminate properly, which allows remote attackers to cause a denial of service via a direct request without arguments.
How severe is CVE-2002-2309?: CVE-2002-2309 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2002-2309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-2309?: CVE-2002-2309 primarily affects Php. In total, 38 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-2309?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2002-2309 published?: CVE-2002-2309 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (38)

cpe:2.3:a:php:php:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.8:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.9:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.10:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.11:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.12:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.13:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.14:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.15:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.16:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.17:*:*:*:*:*:*:*
cpe:2.3:a:php:php:3.0.18:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*
cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*

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