How severe is CVE-2006-4483?

CVE-2006-4483 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2006-4483 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4483?

CVE-2006-4483 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-4483?

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-2006-4483 published?

CVE-2006-4483 was published on 2006-08-31 and last updated on 2026-06-16.

CVE-2006-4483

CVE-2006-4483 is a critical-severity vulnerability in Php with a CVSS 2.0 base score of 9.3. 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-862.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Php
Published: 2006-08-31
Last modified: 2026-06-16

Description

The cURL extension files (1) ext/curl/interface.c and (2) ext/curl/streams.c in PHP before 5.1.5 permit the CURLOPT_FOLLOWLOCATION option when open_basedir or safe_mode is enabled, which allows attackers to perform unauthorized actions, possibly related to the realpath cache.

Frequently asked questions

What is CVE-2006-4483?: The cURL extension files (1) ext/curl/interface.c and (2) ext/curl/streams.c in PHP before 5.1.5 permit the CURLOPT_FOLLOWLOCATION option when open_basedir or safe_mode is enabled, which allows attackers to perform unauthorized actions, possibly related to the realpath cache.
How severe is CVE-2006-4483?: CVE-2006-4483 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2006-4483 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4483?: CVE-2006-4483 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4483?: 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-2006-4483 published?: CVE-2006-4483 was published on 2006-08-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

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