How severe is CVE-2007-4528?

CVE-2007-4528 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-4528 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4528?

CVE-2007-4528 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-4528?

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

When was CVE-2007-4528 published?

CVE-2007-4528 was published on 2007-08-25 and last updated on 2026-06-16.

CVE-2007-4528

CVE-2007-4528 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Php
Published: 2007-08-25
Last modified: 2026-06-16

Description

The Foreign Function Interface (ffi) extension in PHP 5.0.5 does not follow safe_mode restrictions, which allows context-dependent attackers to execute arbitrary code by loading an arbitrary DLL and calling a function, as demonstrated by kernel32.dll and the WinExec function. NOTE: this issue does not cross privilege boundaries in most contexts, so perhaps it should not be included in CVE.

Frequently asked questions

What is CVE-2007-4528?: The Foreign Function Interface (ffi) extension in PHP 5.0.5 does not follow safe_mode restrictions, which allows context-dependent attackers to execute arbitrary code by loading an arbitrary DLL and calling a function, as demonstrated by kernel32.dll and the WinExec function. NOTE: this issue does not cross privilege boundaries in most contexts, so perhaps it should not be included in CVE.
How severe is CVE-2007-4528?: CVE-2007-4528 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-4528 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4528?: CVE-2007-4528 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-4528?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4528 published?: CVE-2007-4528 was published on 2007-08-25 and last updated on 2026-06-16.

References

https://www.exploit-db.com/exploits/4311

Affected products (1)

cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*

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