How severe is CVE-2012-2329?

CVE-2012-2329 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-2329 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 63% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2329?

CVE-2012-2329 primarily affects Php. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-2329?

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

When was CVE-2012-2329 published?

CVE-2012-2329 was published on 2012-05-11 and last updated on 2026-06-16.

CVE-2012-2329

CVE-2012-2329 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 63% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 63% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Php
Published: 2012-05-11
Last modified: 2026-06-16

Description

Buffer overflow in the apache_request_headers function in sapi/cgi/cgi_main.c in PHP 5.4.x before 5.4.3 allows remote attackers to cause a denial of service (application crash) via a long string in the header of an HTTP request.

Frequently asked questions

What is CVE-2012-2329?: Buffer overflow in the apache_request_headers function in sapi/cgi/cgi_main.c in PHP 5.4.x before 5.4.3 allows remote attackers to cause a denial of service (application crash) via a long string in the header of an HTTP request.
How severe is CVE-2012-2329?: CVE-2012-2329 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-2329 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 63% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2329?: CVE-2012-2329 primarily affects Php. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-2329?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-2329 published?: CVE-2012-2329 was published on 2012-05-11 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:php:php:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:php:php:5.4.2:*:*:*:*:*:*:*

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