What is the CVSS score of CVE-2012-2556?

CVE-2012-2556 has a CVSS 2.0 base score of 9.3 (Critical). CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. EPSS exploitation probability: 46.2%.

Windows Xp CVE-2012-2556

CRITICAL

Code Injection (CWE-94)

2012-12-12 secure@microsoft.com

RCE Microsoft Code Injection Windows Server 2008 Windows Server 2012 Windows 7 Windows Xp Windows 2003 Server Windows Server 2003 Windows Vista Windows 8 Windows Rt

9.3

CVSS 2.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-94 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Code injection prevention, sandbox exec MITRE ATT&CK 2 techniques across 2 tactics: Execution, Initial Access 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 9.3 (CRITICAL). Attack characteristics: network attack vector, M complexity. EPSS exploitation probability: 46.25%.
Exploit ScenarioDerived	A remote attacker could inject and execute arbitrary code within the application by sending crafted requests to the affected application.

Emergency Immediate action required. Why: CRITICAL + EPSS > 30%, no patch available.

No patch listed yet 46.2% exploitation probability (EPSS)

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AnalysisAI

The OpenType Font (OTF) driver in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 46.2% and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

Affects your stack

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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 Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. The OpenType Font (OTF) driver in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, Windows 8, Windows Server 2012, and Windows RT allows remote attackers to execute arbitrary code via a crafted OpenType font file, aka "OpenType Font Parsing Vulnerability." Affected products include: Microsoft Windows 2003 Server, Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows Rt, Microsoft Windows Server 2003.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.3 CRITICAL

AV:N/AC:M/Au:N/C:C/I:C/A:C

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Confidentiality

Integrity

Availability

DescriptionCVE.org

The OpenType Font (OTF) driver in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, Windows 8, Windows Server 2012, and Windows RT allows remote attackers to execute arbitrary code via a crafted OpenType font file, aka "OpenType Font Parsing Vulnerability."

Threat Intelligence Overview

EPSS Score

46.2%

Top 2% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

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 No

EPSS 46.2%

Patch available No

Active threat No

Deciding rule

CRITICAL + EPSS > 30%, no patch 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

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +46

CVSS: +46

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*

cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:-:sp2:itanium:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2008:r2:*:itanium:*:*:*:*:*

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References

Advisories & patches

REF http://www.us-cert.gov/cas/techalerts/TA12-346A.html REF https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-078 REF https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16067

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