Is CVE-2012-3450 in the CISA KEV catalog?

No. CVE-2012-3450 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-3450?

CVE-2012-3450 has a CVSS v2 base score of 2.6 (LOW).

What is the EPSS score for CVE-2012-3450?

CVE-2012-3450 has an EPSS score of 11.18% (95th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-3450

LOWEPSS 95th pctl

2.6

CVSS v2

NVD

Description

pdo_sql_parser.re in the PDO extension in PHP before 5.3.14 and 5.4.x before 5.4.4 does not properly determine the end of the query string during parsing of prepared statements, which allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted parameter value.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

11.18%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.