How severe is CVE-2007-1453?

CVE-2007-1453 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2007-1453 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-1453?

CVE-2007-1453 affects Php. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-1453?

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-2007-1453 published?

CVE-2007-1453 was published on 2007-03-14 and last updated on 2026-06-16.

CVE-2007-1453

CVE-2007-1453 is a high-severity vulnerability in Php with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Php
Published: 2007-03-14
Last modified: 2026-06-16

Description

Buffer underflow in the PHP_FILTER_TRIM_DEFAULT macro in the filtering extension (ext/filter) in PHP 5.2.0 allows context-dependent attackers to execute arbitrary code by calling filter_var with certain modes such as FILTER_VALIDATE_INT, which causes filter to write a null byte in whitespace that precedes the buffer.

Frequently asked questions

What is CVE-2007-1453?: Buffer underflow in the PHP_FILTER_TRIM_DEFAULT macro in the filtering extension (ext/filter) in PHP 5.2.0 allows context-dependent attackers to execute arbitrary code by calling filter_var with certain modes such as FILTER_VALIDATE_INT, which causes filter to write a null byte in whitespace that precedes the buffer.
How severe is CVE-2007-1453?: CVE-2007-1453 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-1453 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1453?: CVE-2007-1453 affects Php. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1453?: 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-2007-1453 published?: CVE-2007-1453 was published on 2007-03-14 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*

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