How severe is CVE-2012-3363?

CVE-2012-3363 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2012-3363 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3363?

CVE-2012-3363 primarily affects Zend Zend Framework. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3363?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-3363 published?

CVE-2012-3363 was published on 2013-02-13 and last updated on 2026-06-16.

CVE-2012-3363

CVE-2012-3363 is a critical-severity vulnerability in Zend Zend Framework with a CVSS 3.x base score of 9.1. Its EPSS exploit-prediction score of 50% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-611.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 50% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Zend Zend Framework
Published: 2013-02-13
Last modified: 2026-06-16

Description

Zend_XmlRpc in Zend Framework 1.x before 1.11.12 and 1.12.x before 1.12.0 does not properly handle SimpleXMLElement classes, which allows remote attackers to read arbitrary files or create TCP connections via an external entity reference in a DOCTYPE element in an XML-RPC request, aka an XML external entity (XXE) injection attack.

Frequently asked questions

What is CVE-2012-3363?: Zend_XmlRpc in Zend Framework 1.x before 1.11.12 and 1.12.x before 1.12.0 does not properly handle SimpleXMLElement classes, which allows remote attackers to read arbitrary files or create TCP connections via an external entity reference in a DOCTYPE element in an XML-RPC request, aka an XML external entity (XXE) injection attack.
How severe is CVE-2012-3363?: CVE-2012-3363 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2012-3363 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3363?: CVE-2012-3363 primarily affects Zend Zend Framework. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3363?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-3363 published?: CVE-2012-3363 was published on 2013-02-13 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:zend:zend_framework:*:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:1.12.0:rc1:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:1.12.0:rc2:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:1.12.0:rc3:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:1.12.0:rc4:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:17:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:18:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*

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