How severe is CVE-2007-1484?

CVE-2007-1484 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2007-1484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-1484?

CVE-2007-1484 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-1484?

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

When was CVE-2007-1484 published?

CVE-2007-1484 was published on 2007-03-16 and last updated on 2026-06-16.

CVE-2007-1484

CVE-2007-1484 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 4.6. 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 4.6)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Php
Published: 2007-03-16
Last modified: 2026-06-16

Description

The array_user_key_compare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zval_dtor, which triggers memory corruption and allows local users to bypass safe_mode and execute arbitrary code via a certain unset operation after array_user_key_compare has been called.

Frequently asked questions

What is CVE-2007-1484?: The array_user_key_compare function in PHP 4.4.6 and earlier, and 5.x up to 5.2.1, makes erroneous calls to zval_dtor, which triggers memory corruption and allows local users to bypass safe_mode and execute arbitrary code via a certain unset operation after array_user_key_compare has been called.
How severe is CVE-2007-1484?: CVE-2007-1484 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2007-1484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1484?: CVE-2007-1484 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1484?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-1484 published?: CVE-2007-1484 was published on 2007-03-16 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)