How severe is CVE-2008-3660?

CVE-2008-3660 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2008-3660 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-3660?

CVE-2008-3660 primarily affects Php. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-3660?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2008-3660 published?

CVE-2008-3660 was published on 2008-08-15 and last updated on 2026-06-16.

CVE-2008-3660

CVE-2008-3660 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 5.0. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Php
Published: 2008-08-15
Last modified: 2026-06-16

Description

PHP 4.4.x before 4.4.9, and 5.x through 5.2.6, when used as a FastCGI module, allows remote attackers to cause a denial of service (crash) via a request with multiple dots preceding the extension, as demonstrated using foo..php.

Frequently asked questions

What is CVE-2008-3660?: PHP 4.4.x before 4.4.9, and 5.x through 5.2.6, when used as a FastCGI module, allows remote attackers to cause a denial of service (crash) via a request with multiple dots preceding the extension, as demonstrated using foo..php.
How severe is CVE-2008-3660?: CVE-2008-3660 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2008-3660 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-3660?: CVE-2008-3660 primarily affects Php. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-3660?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-3660 published?: CVE-2008-3660 was published on 2008-08-15 and last updated on 2026-06-16.

References

Affected products (16)

cpe:2.3:a:php:php:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.6:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.7:*:*:*:*:*:*:*
cpe:2.3:a:php:php:4.4.8:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.2:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.4:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.5:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.2.6:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

222.99.52.202 (ipv4-addr)
90.160.135.217 (ipv4-addr)
76.133.97.153 (ipv4-addr)
62.36.19.42 (ipv4-addr)
62.36.19.41 (ipv4-addr)
171.100.156.38 (ipv4-addr)