What is the CVSS score of CVE-2012-3363?

CVE-2012-3363 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 55.1%.

Is there a public PoC exploit available for CVE-2012-3363?

Yes, a public proof-of-concept exploit is available for CVE-2012-3363. Prioritise patching immediately. EPSS: 55.1%.

Is there a patch available for CVE-2012-3363?

Yes, a patch is available for CVE-2012-3363. Update the affected software to the latest version immediately.

Zend Framework CVE-2012-3363

CRITICAL

Improper Restriction of XML External Entity Reference (CWE-611)

2013-02-13 secalert@redhat.com

XXE Debian Debian Linux Fedora Zend Framework Fedoraproject Zend

9.1

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-611 OWASP Top 10:2025 A02:2025 - Security Misconfiguration ASVS 5.0 V13 - Configuration XML external entity prevention MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 9.1 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 55.12%.
Exploit ScenarioDerived	A remote attacker could read arbitrary files or perform SSRF through XML processing by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

Patch available 55.1% exploitation probability (EPSS)

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AnalysisAI

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. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 55.1%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Disable external entity processing in XML parsers, use JSON instead of XML where possible.

Affected Packages

composer zendframework/zendframework1 fix: 1.11.12, 1.12.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. 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. Affected products include: Zend Zend Framework, Fedoraproject Fedora, Debian Debian Linux. Version information: before 1.11.12.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

DescriptionCVE.org

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.

Threat Intelligence Overview

Threat Score

5.0/10

Composite threat intelligence

EPSS Score

55.1%

Top 2% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

Exploit-DB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 55.1%

Patch available Yes

Active threat Yes

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

121

Low Medium High Critical

KEV: 0

EPSS: +55

CVSS: +46

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

XML External Entity Injection HIGH

XML External Entity (XXE) attacks exploit XML parsers that process Document Type Definitions (DTDs) without proper restrictions.

Affected Products (CPE)CVE.org

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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References

Advisories & patches

PATCH http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-34284 ADVISORY http://framework.zend.com/security/advisory/ZF2012-01 REF http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101310.html REF http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101358.html REF http://openwall.com/lists/oss-security/2013/03/25/2 REF http://www.debian.org/security/2012/dsa-2505 REF http://www.openwall.com/lists/oss-security/2012/06/26/2 REF http://www.openwall.com/lists/oss-security/2012/06/26/4 REF http://www.openwall.com/lists/oss-security/2012/06/27/2 REF http://www.securitytracker.com/id?1027208 REF https://moodle.org/mod/forum/discuss.php?d=225345 REF https://www.sec-consult.com/files/20120626-0_zend_framework_xxe_injection.txt

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