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Excel CVE-2015-0097

CRITICAL
Data Processing Errors (CWE-19)
2015-03-11 secure@microsoft.com
RCE Microsoft Excel Powerpoint Word
9.3
CVSS 2.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-19
ASVS 5.0
V2 - Validation and Business Logic Data processing
Impact

CVSS score of 9.3 (CRITICAL). Attack characteristics: network attack vector, M complexity. Public proof-of-concept exploit code is available. EPSS exploitation probability: 79.41%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.
Emergency Immediate action required. Why: CRITICAL + EPSS > 30%, no patch available.
No patch listed yet 79.4% exploitation probability (EPSS)

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AnalysisAI

Microsoft Excel 2007 SP3, PowerPoint 2007 SP3, Word 2007 SP3, Excel 2010 SP2, PowerPoint 2010 SP2, and Word 2010 SP2 allow remote attackers to execute arbitrary code via a crafted Office document,. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 79.4%.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-19. Microsoft Excel 2007 SP3, PowerPoint 2007 SP3, Word 2007 SP3, Excel 2010 SP2, PowerPoint 2010 SP2, and Word 2010 SP2 allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Word Local Zone Remote Code Execution Vulnerability." Affected products include: Microsoft Excel, Microsoft Powerpoint, Microsoft Word.

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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
M
Confidentiality
C
Integrity
C
Availability
C

DescriptionCVE.org

Microsoft Excel 2007 SP3, PowerPoint 2007 SP3, Word 2007 SP3, Excel 2010 SP2, PowerPoint 2010 SP2, and Word 2010 SP2 allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Word Local Zone Remote Code Execution Vulnerability."

Threat Intelligence Overview

Threat Score
5.7/10
Composite threat intelligence
EPSS Score
79.4%
Top 1% 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 79.4%
Patch available No
Active threat Yes
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
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

145
Low Medium High Critical
KEV: 0
EPSS: +79
CVSS: +46
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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:a:microsoft:excel:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:x86:*
cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:x86:*:*
cpe:2.3:a:microsoft:powerpoint:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:powerpoint:2010:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:word:2010:sp2:*:*:*:*:*:*

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References

Advisories & patches
REF http://www.securitytracker.com/id/1031896 REF https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-022

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